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Question 1
Correct
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A 63-year-old woman complains of abdominal discomfort, bloating, and a change in bowel habit with looser, more frequent stools. She has been experiencing these symptoms since her husband passed away 3 months ago. Her daughter believes she may have irritable bowel syndrome and is seeking treatment. What is the recommended course of action for managing her symptoms?
Your Answer: 2 week referral to secondary care
Explanation:This woman has exhibited a concerning symptom of experiencing loose stools for over 6 weeks, which is a red flag indicator. Given her age of over 60 years, it is important to discuss the potential of an underlying cancer and refer her to secondary care for further testing within 2 weeks to rule out the possibility of bowel cancer.
Colorectal cancer referral guidelines were updated by NICE in 2015. Patients who are 40 years or older with unexplained weight loss and abdominal pain, those who are 50 years or older with unexplained rectal bleeding, and those who are 60 years or older with iron deficiency anaemia or a change in bowel habit should be referred urgently to colorectal services for investigation. Additionally, patients with positive results for occult blood in their faeces should also be referred urgently.
An urgent referral should be considered if there is a rectal or abdominal mass, an unexplained anal mass or anal ulceration, or if patients under 50 years old have rectal bleeding and any of the following unexplained symptoms or findings: abdominal pain, change in bowel habit, weight loss, or iron deficiency anaemia.
The NHS offers a national screening programme for colorectal cancer every two years to all men and women aged 60 to 74 years in England and 50 to 74 years in Scotland. Patients aged over 74 years may request screening. Eligible patients are sent Faecal Immunochemical Test (FIT) tests through the post. FIT is a type of faecal occult blood test that uses antibodies to detect and quantify the amount of human blood in a single stool sample. Patients with abnormal results are offered a colonoscopy.
The FIT test is also recommended for patients with new symptoms who do not meet the 2-week criteria listed above. For example, patients who are 50 years or older with unexplained abdominal pain or weight loss, those under 60 years old with changes in their bowel habit or iron deficiency anaemia, and those who are 60 years or older who have anaemia even in the absence of iron deficiency.
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This question is part of the following fields:
- Gastroenterology
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Question 2
Correct
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A 40-year-old woman has poorly controlled type II diabetes mellitus. She is unable to tolerate metformin and so takes sitagliptin. Given her poor control, pioglitazone is added. She has read some information online about pioglitazone and would like some more information.
What is the best advice you can provide her about the potential effects of pioglitazone use?Your Answer: Monitoring of liver function advisable
Explanation:Important Considerations for the Use of Pioglitazone in Diabetes Management
Pioglitazone is a medication approved for the treatment of poorly controlled type II diabetes mellitus. It can be used alone or in combination with other medications, including metformin or sulphonylurea, or with insulin. However, there are several important considerations to keep in mind when using pioglitazone.
Liver function monitoring is advisable before starting treatment and periodically thereafter due to rare reports of liver dysfunction. Pioglitazone should not be used during pregnancy due to demonstrated toxicity in animal studies. Additionally, it is associated with a small increased risk of bladder cancer and should not be used in those with active bladder cancer, a history of bladder cancer, or those under investigation for haematuria.
While pioglitazone can be prescribed together with metformin as second-line management for diabetes, it should not be used in patients with heart failure or a history of heart failure. The incidence of heart failure is increased when pioglitazone is combined with insulin, especially in patients with predisposing illness such as myocardial infarction.
In summary, pioglitazone can be a useful medication for diabetes management, but it is important to carefully consider its potential risks and benefits and monitor patients appropriately.
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This question is part of the following fields:
- Metabolic Problems And Endocrinology
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Question 3
Correct
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A 75-year-old woman is experiencing fatigue and shortness of breath. She appears to be anaemic and the following blood test results are significant:
Investigation Result Normal Value
Haemoglobin 68 g/l 115-155 g/l
White cell count 2.6 x 109/l 4.0-11.0 x 109/l
Platelets 160 x 109/l 150-400 x 109/l
Reticulocyte count 0.75% 0.5%-1.5%
Mean corpuscular volume 135 fl 76-98 fl
Ferritin 110 μg/l 10-120 μg/l
What is the most probable cause of her anaemia?Your Answer: Vitamin B12 deficiency
Explanation:Understanding Macrocytosis and its Differential Diagnosis
Macrocytosis is a condition characterized by the presence of abnormally large red blood cells in the bloodstream. While there are several possible causes of macrocytosis, one of the most common is vitamin B12 deficiency. This deficiency can lead to anaemia and macrocytosis, with a mean corpuscular volume (MCV) of 130 femtolitres or more being a strong indicator of B12 deficiency.
Other potential causes of macrocytosis include drug-induced effects, excessive alcohol intake, and human immunodeficiency virus infection. However, these conditions may not necessarily lead to anaemia unless poor nutrition is also a factor.
Myelodysplasia and aplastic anaemia are also in the differential diagnosis of vitamin B12 deficiency, but the MCV level can help differentiate between these conditions. If the MCV is between 100-110 femtolitres, other causes of macrocytosis should be considered.
Overall, understanding the potential causes of macrocytosis and their differential diagnosis is crucial for accurate diagnosis and effective treatment.
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This question is part of the following fields:
- Haematology
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Question 4
Correct
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A breastfeeding mother brings in her three-month-old infant who has been experiencing some burning pain in both nipples during feeds and for up to an hour after. She also reports some itching and sensitivity in her nipples. The baby is growing well and there are no other concerns. During examination, the mother's breasts and nipples appear normal, but the infant has white patches on their tongue. What is the recommended initial treatment?
Your Answer: Miconazole cream for the mother and nystatin suspension for the baby
Explanation:When treating nipple candidiasis during breastfeeding, it is recommended to use miconazole cream for the mother and nystatin suspension for the baby. This is likely to be nipple thrush, and it’s important to treat both mother and baby simultaneously to prevent re-infection, even if the baby shows no signs of infection. It’s worth noting that while miconazole gel can also be used for babies over 4 months, it’s not licensed for those under 4 months due to concerns about choking on the gel. Parents should be carefully informed about the risks and how to administer it safely if it’s prescribed.
Breastfeeding Problems and Management
Breastfeeding can come with its own set of challenges, but most of them can be managed with proper care and attention. Some common issues include frequent feeding, nipple pain, blocked ducts, and nipple candidiasis. These problems can be addressed by seeking advice on positioning, breast massage, and using appropriate creams and suspensions.
Mastitis is a more serious condition that affects around 1 in 10 breastfeeding women. It is important to seek treatment if symptoms persist or worsen, including systemic illness, nipple fissures, or infection. The first-line antibiotic is flucloxacillin, and breastfeeding or expressing should continue during treatment. If left untreated, mastitis can lead to a breast abscess, which requires incision and drainage.
Breast engorgement is another common issue that can cause pain and discomfort. It usually occurs in the first few days after birth and can affect both breasts. Hand expression of milk can help relieve the discomfort of engorgement, and complications can be avoided by addressing the issue promptly.
Raynaud’s disease of the nipple is a less common but still significant problem that can cause pain and blanching of the nipple. Treatment options include minimizing exposure to cold, using heat packs, avoiding caffeine and smoking, and considering oral nifedipine.
Concerns about poor infant weight gain can also arise, prompting consideration of the above breastfeeding problems and an expert review of feeding. Monitoring of weight until weight gain is satisfactory is also recommended. With proper management and support, most breastfeeding problems can be overcome, allowing for a successful and rewarding breastfeeding experience.
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This question is part of the following fields:
- Maternity And Reproductive Health
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Question 5
Incorrect
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You received a letter from the ophthalmology department regarding Mrs. Patel, an 80-year-old woman who has been listed for cataract surgery. They report that her blood pressure (BP) is raised at 156/94 mmHg and ask you to follow this up, as her BP needs to be well controlled before the operation will be performed.
You have a look at her medication list and see she is already on amlodipine 5mg, losartan 50 mg, and hydrochlorothiazide 12.5mg.
Her most recent renal profile is below.
Na+ 142 mmol/L (135 - 145)
K+ 4.5 mmol/L (3.5 - 5.0)
Urea 6.8 mmol/L (2.0 - 7.0)
Creatinine 82 µmol/L (55 - 120)
Assuming she is compliant with her medications, what is the next treatment step for her hypertension?Your Answer: Spironolactone
Correct Answer: Alpha-blocker or beta-blocker
Explanation:For a patient with poorly controlled hypertension who is already taking an ACE inhibitor, calcium channel blocker, and a standard-dose thiazide diuretic with a potassium level greater than 4.5mmol/L, the recommended 4th-line option is to add an alpha- or beta-blocker. It is important to check for postural hypotension and confirm the elevated clinic reading with home/ambulatory BP monitoring for patients with resistant hypertension. Combining an angiotensin-converting enzyme inhibitor with an angiotensin II receptor blocker, such as candesartan, is not recommended. There is no need to switch patients who are already taking bendroflumethiazide to indapamide. Referral to cardiology would be appropriate if the patient remains uncontrolled on the maximum tolerated dose of a 4th antihypertensive.
Hypertension, or high blood pressure, is a common condition that can lead to serious health problems if left untreated. The National Institute for Health and Care Excellence (NICE) has published updated guidelines for the management of hypertension in 2019. Some of the key changes include lowering the threshold for treating stage 1 hypertension in patients under 80 years old, allowing the use of angiotensin receptor blockers instead of ACE inhibitors, and recommending the use of calcium channel blockers or thiazide-like diuretics in addition to ACE inhibitors or angiotensin receptor blockers.
Lifestyle changes are also important in managing hypertension. Patients should aim for a low salt diet, reduce caffeine intake, stop smoking, drink less alcohol, eat a balanced diet rich in fruits and vegetables, exercise more, and lose weight.
Treatment for hypertension depends on the patient’s blood pressure classification. For stage 1 hypertension with ABPM/HBPM readings of 135/85 mmHg or higher, treatment is recommended for patients under 80 years old with target organ damage, established cardiovascular disease, renal disease, diabetes, or a 10-year cardiovascular risk equivalent to 10% or greater. For stage 2 hypertension with ABPM/HBPM readings of 150/95 mmHg or higher, drug treatment is recommended regardless of age.
The first-line treatment for patients under 55 years old or with a background of type 2 diabetes mellitus is an ACE inhibitor or angiotensin receptor blocker. Calcium channel blockers are recommended for patients over 55 years old or of black African or African-Caribbean origin. If a patient is already taking an ACE inhibitor or angiotensin receptor blocker, a calcium channel blocker or thiazide-like diuretic can be added.
If blood pressure remains uncontrolled with the optimal or maximum tolerated doses of four drugs, NICE recommends seeking expert advice or adding a fourth drug. Blood pressure targets vary depending on age, with a target of 140/90 mmHg for patients under 80 years old and 150/90 mmHg for patients over 80 years old. Direct renin inhibitors, such as Aliskiren, may be used in patients who are intolerant of other antihypertensive drugs, but their role is currently limited.
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This question is part of the following fields:
- Kidney And Urology
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Question 6
Incorrect
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What is the tendon involved in de Quervain's tenosynovitis/tenovaginitis?
Your Answer: Abductor pollicis longus
Correct Answer: Adductor pollicis
Explanation:De Quervain’s Disease: How to Examine and Test for it
De Quervain’s disease is a condition where the sheath containing the extensor pollicis brevis and abductor pollicis longus tendons becomes inflamed and thickened. To examine a patient with this condition, one can perform a Finkelstein’s test. This test involves the patient making a fist with their thumb tucked inside their fingers, and then bending their wrist towards their little finger. If the patient experiences pain on the thumb side of their wrist, it is likely that they have De Quervain’s tenosynovitis.
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This question is part of the following fields:
- Musculoskeletal Health
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Question 7
Correct
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A 56-year-old man presents with general malaise. He has recently been prescribed carbimazole for hyperthyroidism. What is the most crucial blood test to conduct?
Your Answer: Full blood count
Explanation:Exclusion of agranulocytosis is necessary when using carbimazole.
Carbimazole is a medication used to treat thyrotoxicosis, a condition where the thyroid gland produces too much thyroid hormone. It is usually given in high doses for six weeks until the patient’s thyroid hormone levels become normal, after which the dosage is reduced. The drug works by blocking thyroid peroxidase, an enzyme that is responsible for coupling and iodinating the tyrosine residues on thyroglobulin, which ultimately leads to a reduction in thyroid hormone production. In contrast, propylthiouracil has a dual mechanism of action, inhibiting both thyroid peroxidase and 5′-deiodinase, which reduces the peripheral conversion of T4 to T3.
However, carbimazole is not without its adverse effects. One of the most serious side effects is agranulocytosis, a condition where the body’s white blood cell count drops significantly, making the patient more susceptible to infections. Additionally, carbimazole can cross the placenta and affect the developing fetus, although it may be used in low doses during pregnancy under close medical supervision. Overall, carbimazole is an effective medication for managing thyrotoxicosis, but its potential side effects should be carefully monitored.
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This question is part of the following fields:
- Metabolic Problems And Endocrinology
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Question 8
Incorrect
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A patient in their 20s presents with alcohol problems.
This is long standing and they have struggled for many years. They have an allocated worker but feel they need something different. They ask about AA (Alcoholics Anonymous) and about drinking in the long term.
Which one of the following best represents AA advice regarding future alcohol consumption?Your Answer: The AA advocate controlled social drinking, limiting members to one drink
Correct Answer: Alcoholics Anonymous suggests that once in 'recovery' the alcoholic can resume social drinking
Explanation:Alcoholics Anonymous: A Global Organisation for Abstinence
Alcoholics Anonymous (AA) is a non-governmental organisation that is solely funded by its own membership. Its message is one of total abstinence from alcohol, and it has a worldwide presence. Members meet regularly, sometimes daily, to share their experiences and support each other in their journey towards sobriety. The only requirement for membership is a desire to stop drinking alcohol.
AA’s 12-step recovery programme is based on self-reliance and has been emulated by other organisations such as Narcotics Anonymous (NA). It can be highly effective for individuals struggling with addiction. However, AA doesn’t advocate for a return to social or moderate drinking after recovery from alcoholism.
Overall, Alcoholics Anonymous provides a supportive community for individuals seeking to overcome their addiction to alcohol and maintain sobriety.
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This question is part of the following fields:
- Smoking, Alcohol And Substance Misuse
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Question 9
Correct
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A 28-year-old female has been experiencing a throbbing headache on one side for the past day. She is currently 34 weeks pregnant and has had an uncomplicated pregnancy so far. On examination, her reflexes are normal, there is no papilloedema, and her blood pressure is 136/88 mmHg. Prior to becoming pregnant, she would typically use ibuprofen or aspirin to alleviate her headaches, which was effective.
What is the most appropriate initial treatment for this patient's headache?Your Answer: Paracetamol
Explanation:The recommended initial treatment for migraines during pregnancy is paracetamol, which is likely to be effective for this patient experiencing a pulsating headache on one side. Aspirin and ibuprofen should be avoided in the third trimester due to the risk of fetal ductal arteriosus closure. Sumatriptan is not considered first-line and should only be used if the potential benefits outweigh the risks, according to the manufacturer’s advice.
Managing Migraine in Relation to Hormonal Factors
Migraine is a common neurological condition that affects many people, particularly women. Hormonal factors such as pregnancy, contraception, and menstruation can have an impact on the management of migraine. In 2008, the Scottish Intercollegiate Guidelines Network (SIGN) produced guidelines on the management of migraine, which provide useful information on how to manage migraine in relation to these hormonal factors.
When it comes to migraine during pregnancy, paracetamol is the first-line treatment, while NSAIDs can be used as a second-line treatment in the first and second trimester. However, aspirin and opioids such as codeine should be avoided during pregnancy. If a patient has migraine with aura, the combined oral contraceptive (COC) pill is absolutely contraindicated due to an increased risk of stroke. Women who experience migraines around the time of menstruation can be treated with mefenamic acid or a combination of aspirin, paracetamol, and caffeine. Triptans are also recommended in the acute situation. Hormone replacement therapy (HRT) is safe to prescribe for patients with a history of migraine, but it may make migraines worse.
In summary, managing migraine in relation to hormonal factors requires careful consideration and appropriate treatment. The SIGN guidelines provide valuable information on how to manage migraine in these situations, and healthcare professionals should be aware of these guidelines to ensure that patients receive the best possible care.
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This question is part of the following fields:
- Maternity And Reproductive Health
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Question 10
Correct
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You are evaluating a 28-year-old female patient who is being treated by a rheumatologist. Despite taking methotrexate and sulfasalazine, she did not experience satisfactory results and is now on leflunomide. The rheumatologist has advised her to continue taking her combined oral contraceptive pill, but she is interested in starting a family in the future. What is the recommended waiting period after discontinuing leflunomide before attempting to conceive?
Your Answer: At least 2 years
Explanation:Women and men who are taking leflunomide must use effective contraception for a minimum of 2 years and 3 months respectively after discontinuing the medication, similar to the requirements for thalidomide.
Leflunomide: A DMARD for Rheumatoid Arthritis
Leflunomide is a type of disease modifying anti-rheumatic drug (DMARD) that is commonly used to manage rheumatoid arthritis. It is important to note that this medication has a very long half-life, which means that its teratogenic potential should be taken into consideration. As such, it is contraindicated in pregnant women, and effective contraception is essential during treatment and for at least two years after treatment in women, and at least three months after treatment in men. Caution should also be exercised in patients with pre-existing lung and liver disease.
Like any medication, leflunomide can cause adverse effects. Some of the most common side effects include gastrointestinal issues such as diarrhea, hypertension, weight loss or anorexia, peripheral neuropathy, myelosuppression, and pneumonitis. To monitor for any potential complications, patients taking leflunomide should have their full blood count (FBC), liver function tests (LFT), and blood pressure checked regularly.
If a patient needs to stop taking leflunomide, it is important to note that the medication has a very long wash-out period of up to a year. To help speed up the process, co-administration of cholestyramine may be necessary. Overall, leflunomide can be an effective treatment option for rheumatoid arthritis, but it is important to carefully consider its potential risks and benefits before starting treatment.
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This question is part of the following fields:
- Gynaecology And Breast
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Question 11
Correct
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A 22 year old man is being investigated by a cardiologist for prolonged QT-syndrome. He visits your clinic with a 4 day history of cough with thick, green sputum, fever, and fatigue. During examination, his temperature is found to be 39ºC, oxygen saturation is 96% on air, and crackles are heard at the base of his left lung. Which medication should be avoided in treating his condition?
Your Answer: Erythromycin
Explanation:The normal corrected QT interval for males is below 430 ms and for females it is below 450 ms. Long QT syndrome (LQTS) is a rare condition that can be inherited or acquired, causing delayed repolarisation of the ventricles and increasing the risk of ventricular tachyarrhythmias. This can result in syncope, cardiac arrest, or sudden death. LQTS can be detected incidentally on an ECG, after a cardiac event such as syncope or cardiac arrest, or following the sudden death of a family member.
Long QT syndrome (LQTS) is a genetic condition that causes a delay in the ventricles’ repolarization. This delay can lead to ventricular tachycardia/torsade de pointes, which can cause sudden death or collapse. The most common types of LQTS are LQT1 and LQT2, which are caused by defects in the alpha subunit of the slow delayed rectifier potassium channel. A normal corrected QT interval is less than 430 ms in males and 450 ms in females.
There are various causes of a prolonged QT interval, including congenital factors, drugs, and other conditions. Congenital factors include Jervell-Lange-Nielsen syndrome and Romano-Ward syndrome. Drugs that can cause a prolonged QT interval include amiodarone, sotalol, tricyclic antidepressants, and selective serotonin reuptake inhibitors. Other factors that can cause a prolonged QT interval include electrolyte imbalances, acute myocardial infarction, myocarditis, hypothermia, and subarachnoid hemorrhage.
LQTS may be detected on a routine ECG or through family screening. Long QT1 is usually associated with exertional syncope, while Long QT2 is often associated with syncope following emotional stress, exercise, or auditory stimuli. Long QT3 events often occur at night or at rest and can lead to sudden cardiac death.
Management of LQTS involves avoiding drugs that prolong the QT interval and other precipitants if appropriate. Beta-blockers are often used, and implantable cardioverter defibrillators may be necessary in high-risk cases. It is important to note that sotalol may exacerbate LQTS.
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This question is part of the following fields:
- Cardiovascular Health
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Question 12
Incorrect
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A 6-month-old boy has recurrent sticky eyes and has twice had a course of topical antibiotics. A bead of pus is visible at the medial canthus of both eyes. The eyes are not red. He is afebrile and otherwise well.
Which of the following is the most appropriate management option?
Your Answer: Refer for nasolacrimal duct probing
Correct Answer: Advice about nasolacrimal duct massage
Explanation:Managing Nasolacrimal Duct Obstruction in Children: Advice on Massage and Referral
Nasolacrimal duct obstruction, also known as dacryostenosis, is a common condition in neonates, affecting up to 70% of infants. However, only a small percentage of these infants exhibit symptoms. In most cases, the condition resolves spontaneously by the age of 12 months. In the meantime, parents can help manage the condition by cleaning the lids regularly and performing nasolacrimal duct massage.
Nasolacrimal duct massage involves applying gentle pressure with a finger over the common canaliculus, located medial to the eye, and stroking downwards firmly to raise the pressure in the lacrimal sac and encourage opening of the valve. This can help clear excess tears and promote the development of the duct.
If the obstruction persists beyond one year of age, referral for nasolacrimal duct probing may be necessary. However, this patient is too young for this procedure.
Systemic antibiotics may be necessary if the obstruction leads to dacryocystitis, which is characterized by fever and a red, tender swelling over the duct and around the orbit. Topical antibiotics may be used for episodes of associated conjunctivitis, but this is not currently indicated in this patient.
In summary, nasolacrimal duct obstruction is a common condition in infants that usually resolves spontaneously. Parents can help manage the condition by performing nasolacrimal duct massage, and referral for probing may be necessary if the obstruction persists beyond one year of age.
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This question is part of the following fields:
- Eyes And Vision
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Question 13
Incorrect
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A 21-year-old female attends surgery. She has recently been diagnosed with anorexia nervosa and her BMI is 12.8 kg/m2. She is under the care of the local psychiatrist and has come to see you regarding her physical health.
Which one of the following is typically associated with anorexia nervosa?Your Answer: Generalised loss of body hair
Correct Answer: Prolonged QT interval
Explanation:Physical Consequences of Anorexia Nervosa
Anorexia nervosa is a serious eating disorder that requires both psychological and physical assessment. The malnutrition associated with anorexia nervosa can have significant physical consequences. One of the physical consequences is the loss of pubic and axillary hair, but sufferers develop lanugo hair which results in an overall increase in body hair.
Classically, hypogonadotrophic hypogonadism ensues, which results in amenorrhoea rather than menorrhagia. Hypokalaemia is normally found, which is a consequence of poor nutrient intake and can be exacerbated by the abuse of diuretics and laxatives. Hypotension (low blood pressure) usually features, rather than hypertension. Prolonged QT interval is typically associated with anorexia, and ECG should always be performed as part of the physical assessment.
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This question is part of the following fields:
- Mental Health
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Question 14
Correct
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A 35-year-old man presents with redness, mild discomfort and soreness of the left eye which feels gritty. He has never had these symptoms before and has no history of any eye or visual conditions. There is no history suggestive of an ocular foreign body. He is systemically well. Clinical examination shows no reduction in visual acuity and there is no discharge or eyelid abnormalities. His pupils appear normal with normal pupillary responses to light. There is a focal area of raised redness in the left eye. The right eye is white and quiet.
The red area related to the left eye disappears on compression and is mobile when a cotton bud is used to touch the area.
What advice should be given to the patient?Your Answer: The underlying cause is often unknown and the condition is self-limiting and not harmful
Explanation:Understanding Episcleritis
Episcleritis is a benign inflammation of the episclera, which can cause mild soreness, redness, and tenderness in the affected eye. It is important to distinguish episcleritis from scleritis, a more severe ocular condition that often appears in conjunction with other inflammatory diseases such as rheumatoid arthritis.
During examination, a focal area of nodular redness that is mobile on the white of the eye and blanches can be observed. Episcleritis is typically self-limiting and causes no harm, and the cause is usually unknown. Although it is only rarely associated with systemic inflammatory disease, any discomfort present can be treated with an oral anti-inflammatory. Artificial tears can also be useful for symptomatic treatment.
In summary, understanding the difference between episcleritis and scleritis is crucial in diagnosing and treating this condition.
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This question is part of the following fields:
- Eyes And Vision
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Question 15
Incorrect
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A 19-year-old female presents to you with complaints of a sore throat. She reports feeling sick for the past three days with a high fever and painful throat. She has been self-medicating with an over-the-counter flu remedy containing paracetamol. Upon examination, she has a temperature of 37.1°C, tender anterior cervical lymphadenopathy, visible tonsillar exudate, and a dry cough. What is this patient's Centor score?
Your Answer: 2
Correct Answer: 3
Explanation:Understanding the Centor Score for Tonsillitis
The Centor score is a tool used by clinicians to differentiate between viral and bacterial tonsillitis, which helps guide the use of antibiotics. It consists of four criteria: the presence of tonsillar exudate, tender anterior cervical lymphadenopathy or lymphadenitis, a history of fever, and absence of cough. If at least three out of the four criteria are met, it suggests a bacterial infection and antibiotics may be beneficial. Conversely, if less than three criteria are met, antibiotics are unlikely to be needed. It’s important to note that the Centor score is based on a history of fever, not necessarily a fever at the time of being seen. The McIsaac modification adds a point for patients under 15 years old and deducts a point for those over 45 years old. The Centor score is a helpful tool, but it should not replace clinical judgement.
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This question is part of the following fields:
- Ear, Nose And Throat, Speech And Hearing
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Question 16
Incorrect
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You are investigating an elderly patient with suspected heart failure. The NT-proBNP result arrived today as 1300 ng/litre.
Which of the following would be the most appropriate management step?Your Answer: Referral to echocardiography within 6 weeks
Correct Answer: Repeat test in 4 weeks
Explanation:NT-proBNP Levels and Referral Guidelines for Heart Failure
An NT-proBNP level between 400 and 2000 ng/litre should prompt a referral for specialist assessment and echocardiography within 6 weeks. However, if the NT-proBNP level is above 2000 ng/litre, urgent referral for specialist assessment and echocardiography within 2 weeks is necessary due to the poor prognosis associated with very high levels. On the other hand, an NT-proBNP level less than 400 ng/litre makes a diagnosis of heart failure less likely. It is important to keep in mind that certain factors such as obesity, Afro-Caribbean family origin, and medication use (diuretics, ACE-I, beta blockers, and spironolactone) can reduce the NT-proBNP reading and may affect the diagnosis.
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This question is part of the following fields:
- People With Long Term Conditions Including Cancer
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Question 17
Correct
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You come across a 20-year-old art student who complains of a painful, red right eye. The symptoms started four days ago with a sensation of something being stuck in her eye, but she cannot see anything. Her eyelids are now slightly swollen, and her eye is watering. She experiences blurred vision and sensitivity to light. She is generally healthy and wears contact lenses daily, with no history of cold sores.
Upon examination, you observe a diffusely red right eye. Her pupil reaction is normal, but her visual acuity is slightly reduced. Staining reveals a small, circular area on the cornea that takes up the dye.
What is the most probable diagnosis?Your Answer: Corneal ulcer
Explanation:When a patient who wears contact lenses experiences a foreign body sensation in their eye, along with a red eye and an ulcer on staining, it is a classic presentation of a corneal ulcer. However, it is important to rule out herpes simplex keratitis as a differential diagnosis, especially if the patient has a history of herpes. Anterior uveitis, episcleritis, and scleritis would not show any abnormalities on staining the eye.
A corneal ulcer is a condition where there is a defect in the cornea, usually caused by an infection. This is different from a corneal abrasion, which is a defect in the cornea caused by physical trauma. Risk factors for corneal ulcers include using contact lenses and having a vitamin A deficiency, which is more common in developing countries.
The pathophysiology of corneal ulcers can be caused by bacterial, fungal, viral, or Acanthamoeba infections. Bacterial keratitis, fungal keratitis, and viral keratitis (such as herpes simplex or herpes zoster) can lead to a dendritic ulcer. Acanthamoeba keratitis is often associated with contact lens use.
Symptoms of a corneal ulcer include eye pain, sensitivity to light, and watering of the eye. The cornea may also show focal fluorescein staining.
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This question is part of the following fields:
- Eyes And Vision
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Question 18
Incorrect
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A 68-year-old female with a 12 year history of hypertension and diabetes.
At annual review her blood pressure is 138/82 mmHg, pulse 78, fundi reveal background diabetic retinopathy, foot pulses are normal but she has evidence of a peripheral sensory loss to the ankles in both feet.
Her results show:
HbA1c 55 mmol/mol (20-46)
7.2% (3.8-6.4)
Urea 12.5 mmol/L (2.5-7.5)
eGFR 29 mL/min/1.73m2 Cholesterol 4.8 mmol/L (<5.2)
According to the British National Formulary, which of the following medicines should be avoided?Your Answer: Metformin
Correct Answer: Gliclazide
Explanation:Caution with Metformin and Ramipril in Chronic Renal Impairment
This patient shows signs of chronic renal impairment with elevated creatinine and urea levels. It is important to note that the British National Formulary (BNF) advises against the use of metformin if the estimated glomerular filtration rate (eGFR) is less than 30mL/min/1.73m2. This is due to the potential risk of life-threatening lactic acidosis, which has a reported prevalence of one to five cases per 100,000 and a mortality rate of up to 50%.
Metformin is excreted unchanged in the urine, and its half-life is prolonged with decreased renal clearance in proportion to any decrease in creatinine clearance. This can occur chronically in chronic renal impairment or acutely with dehydration, shock, and intravascular administration of iodinated contrast agents, all of which can alter renal function. Tissue hypoxia also plays a significant role, and acute or chronic conditions that may predispose to this condition, such as sepsis, acute myocardial infarction, pulmonary embolism, cardiac failure, and chronic liver disease, may act as triggers.
In the case of Ramipril, the BNF advises a maximum daily dose of 5 mg if the eGFR is between 30-60 mL/minute/1.73 m2 and a maximum initial dose of 1.25 mg once daily (not exceeding 5 mg daily) if the eGFR is less than 30 mL/minute/1.73 m2. There are no such limitations with amlodipine, bisoprolol, or gliclazide. It is important to exercise caution when prescribing medications in patients with chronic renal impairment and to follow the BNF guidelines to minimize the risk of adverse effects.
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This question is part of the following fields:
- Metabolic Problems And Endocrinology
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Question 19
Correct
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A 21-year-old man comes to see his doctor with concerns about his vision. He has been having trouble differentiating between red and green colours and feels that this has gotten worse over time. His brother also experiences similar issues, but his sister and parents do not. What is the best advice you can give to this patient?
Your Answer: Failure of red-green discrimination is the most common feature of his condition
Explanation:Understanding Color Blindness: Causes, Symptoms, and Implications for Daily Life
Color blindness is a condition that affects a person’s ability to distinguish certain colors. The most common form is the failure of red-green discrimination, which is caused by a hereditary X-linked recessive gene. While rare, failure of blue-yellow discrimination can also occur and is more commonly acquired. Monochromatic defects are even rarer, affecting only about 1 in 30,000 people.
Ageing can exacerbate pre-existing color vision deficiencies, but color blindness itself is not affected by ageing. Diagnosis of color blindness requires specialist referral in most cases, as the commonly used Ishihara plate test is limited in its ability to detect more complex diagnoses.
Color blindness can have implications for daily life, particularly in certain occupations. While drivers do not need to notify the Driver and Vehicle Licensing Agency, people with color vision deficiency may be prohibited from working in roles that require color-coded wires, reading dashboards correctly, or operating machinery.
Late-stage optic nerve disease can also affect color vision, but this symptom is usually noticed relatively late in the progression of the disease. Therefore, it is important to test color vision in suspected optic nerve lesions and thyroid eye disease, which can drive progressive optic neuropathy.
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This question is part of the following fields:
- Eyes And Vision
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Question 20
Correct
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A previously healthy 68-year-old man reports experiencing intermittent flashes and a curtain-like loss of lateral vision in his right eye upon waking up this morning. The symptoms have since worsened. What is the most probable cause of his condition?
Your Answer: Retinal detachment
Explanation:Retinal Detachment: A Time-Critical Eye Emergency
Retinal detachment is a serious eye emergency that occurs when the retina’s sensory and pigment layers separate. This condition can be associated with various factors such as congenital malformations, metabolic disorders, trauma, vascular disease, high myopia, vitreous disease, and degeneration. It is important to note that retinal detachment is one of the most time-critical eye emergencies that require immediate medical attention.
Symptoms of retinal detachment include floaters, a grey curtain or veil moving across the field of vision, and sudden decrease of vision.
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This question is part of the following fields:
- Eyes And Vision
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Question 21
Incorrect
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Your health visitor wants to put up a sign in the child health clinic drawing attention to vitamin D supplementation for infants, and she wants to check the recommendation with you.
Advice from PHE is that infants under the age of one should consider taking a daily supplement containing how much vitamin D, during autumn and winter?Your Answer: 5 micrograms
Correct Answer: 10 micrograms
Explanation:New advice on vitamin D supplements
The latest advice from Public Health England (PHE) recommends that adults and children over the age of one should consider taking a daily supplement containing 10mcg of vitamin D, especially during autumn and winter. Those who are at a higher risk of vitamin D deficiency, such as people who have little or no exposure to the sun, those who cover their skin when outside, and people with dark skin from African, African-Caribbean, and South Asian backgrounds, are advised to take a supplement all year round. This advice is based on a review by the Scientific Advisory Committee on Nutrition (SACN), which identified these groups as being at risk of vitamin D deficiency.
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This question is part of the following fields:
- Children And Young People
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Question 22
Correct
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A 25-year-old man was prescribed fluoxetine for a depressive illness related to a recent breakup. You receive a call one week later from his family, stating that he has become very ill after increasing his dose without medical advice. Upon visiting him, you observe that he is confused, sweating profusely, and has a fever of 39.5°C. He is experiencing tremors and myoclonus, but no other physical symptoms. He denies taking any other medications or substances. What is the most likely cause of his symptoms?
Your Answer: Serotonin syndrome
Explanation:Understanding Serotonin Syndrome and Related Drug Reactions
Serotonin syndrome is a serious drug reaction that can occur due to therapeutic drug use, drug interactions, overdose, or recreational drug use. It is caused by excessive activity at serotonin receptors in the central nervous system and peripheral nervous system. Symptoms typically appear within six hours of taking the provoking drug and may include tremors, restlessness, diarrhea, agitation, hypervigilance, and acute delirium.
The syndrome can cause a triad of abnormalities, including cognitive effects like headache and hallucinations, autonomic effects like sweating and nausea, and somatic effects like muscle twitching and tremors. While it is uncommon, the incidence is unclear due to underdiagnosis.
The most important step in treating serotonin syndrome is to remove the offending agent or interacting drugs. Supportive measures like IV fluids and benzodiazepines may also be used. Mild cases usually resolve within 24 hours, while severe cases may require intensive care.
Fluoxetine overdoses are typically minimally toxic, but cardiac conduction abnormalities and fatalities have been reported in cases involving co-ingested drugs or other factors. Neuroleptic malignant syndrome is a rare but potentially life-threatening reaction to neuroleptic drugs that causes fever, muscle rigidity, altered mental status, and autonomic dysfunction. Tardive dyskinesia, characterized by oral grimaces and choreoathetoid movements, is caused mainly by antipsychotic drugs and may resolve when the drug is stopped.
Overall, understanding these drug reactions and their symptoms is crucial for prompt diagnosis and treatment.
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This question is part of the following fields:
- Improving Quality, Safety And Prescribing
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Question 23
Incorrect
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A 44-year-old woman presents with sudden onset weakness and numbness in her legs. She has a history of treated hypertension and occasional cigarette smoking. Her mother passed away in her early forties due to a heart problem. On examination, her cranial nerves and upper limbs appear normal. However, there is increased tone in her legs bilaterally, with brisk reflexes and up-going plantars. She has reduced power to 3/5 in all modalities below the hips and has lost pain and light touch sensation to the waist. Vibration and joint-position sense are normal. What is the most likely diagnosis?
Your Answer: Motor neuron disease
Correct Answer: Anterior spinal artery thrombosis
Explanation:Understanding Anterior Cord Syndrome: Causes and Effects
Anterior cord syndrome occurs when the blood supply to the anterior portion of the spinal cord is interrupted. This portion of the spinal cord is supplied by the anterior spinal artery, which receives branches from the aorta. Therefore, lesions within the aorta, such as aneurysm or atherosclerosis, are the most common causes of anterior cord syndrome. Other causes include vasculitis, polycythemia, sickle cell disease, decompression sickness, cocaine use, and collagen and elastin disorders.
Anterior spinal artery thrombosis affects the corticospinal tracts and spinothalamic tracts, which are responsible for motor neurons and pain/temperature sensation. These tracts are located at the front of the spine. Posterior columns, which carry vibration and joint-position sense, are not affected. As a spinal lesion, anterior cord syndrome is purely upper motor neuronal, resulting in brisk reflexes and up-going plantars.
In contrast, other conditions that affect both upper and lower motor neurons will produce a combination of up-going plantars with absent knee jerks. Understanding the causes and effects of anterior cord syndrome can aid in diagnosis and treatment.
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This question is part of the following fields:
- Neurology
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Question 24
Correct
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A 25-year-old medical student presents to the emergency department accompanied by his friend, reporting a 24-hour history of aggressive behaviour, irritability, and hallucinations. The friend suspects that the patient has experienced a mental breakdown due to sleep deprivation from studying for exams. Laboratory tests reveal no evidence of drug use or infection. The patient is admitted to the hospital for observation and returns to his usual behaviour the following day.
What is the probable diagnosis in this case?Your Answer: Brief psychotic disorder
Explanation:The correct answer is brief psychotic disorder, which is a short-term condition characterized by the sudden onset of at least one positive psychotic symptom, such as delusions, hallucinations, disorganized speech, or catatonic behavior. Unlike other disorders, brief psychotic disorder often resolves with a return to baseline functioning. Adjustment disorder, bipolar disorder, and schizoaffective disorder are not the correct answers as they have different symptoms and characteristics.
Understanding Psychosis: Symptoms and Associated Features
Psychosis is a term used to describe a person’s experience of perceiving things differently from those around them. This can manifest in a variety of ways, including hallucinations, delusions, thought disorganization, alogia, tangentiality, clanging, and word salad. These symptoms can be associated with agitation, aggression, neurocognitive impairment, depression, and thoughts of self-harm.
Psychotic symptoms can occur in a number of conditions, including schizophrenia, depression, bipolar disorder, puerperal psychosis, brief psychotic disorder, neurological conditions like Parkinson’s disease and Huntington’s disease, and as a result of prescribed drugs or certain illicit drugs like cannabis and phencyclidine.
The peak age of first-episode psychosis is around 15-30 years. It is important to understand the symptoms and associated features of psychosis in order to recognize and seek appropriate treatment for those experiencing these symptoms.
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This question is part of the following fields:
- Mental Health
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Question 25
Incorrect
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A 6-month-old boy is scheduled for his routine immunisations. He has received all previous immunisations according to the routine schedule and has no medical history. What vaccinations should he receive during this visit?
Your Answer: DTaP + Hib + PCV + Men C
Correct Answer: '6-1 vaccine' (diphtheria, tetanus, whooping cough, polio, Hib and hepatitis B) + Men B
Explanation:PCV in addition to the 6-1 vaccine (which includes protection against diphtheria, tetanus, whooping cough, polio, Hib, and hepatitis B).
The UK immunisation schedule recommends certain vaccines at different ages. At birth, the BCG vaccine is given if the baby is at risk of tuberculosis. At 2, 3, and 4 months, the ‘6-1 vaccine’ (diphtheria, tetanus, whooping cough, polio, Hib and hepatitis B) and oral rotavirus vaccine are given, along with Men B and PCV at specific intervals. At 12-13 months, the Hib/Men C, MMR, PCV, and Men B vaccines are given. At 3-4 years, the ‘4-in-1 Preschool booster’ (diphtheria, tetanus, whooping cough and polio) and MMR vaccines are given. At 12-13 years, the HPV vaccination is given, and at 13-18 years, the ‘3-in-1 teenage booster’ (tetanus, diphtheria and polio) and Men ACWY vaccines are given. Additionally, the flu vaccine is recommended annually for children aged 2-8 years.
It is important to note that the meningitis ACWY vaccine has replaced meningitis C for 13-18 year-olds due to an increased incidence of meningitis W disease in recent years. The ACWY vaccine is also offered to new students up to the age of 25 years at university. GP practices will automatically send letters inviting 17-and 18-year-olds in school year 13 to have the Men ACWY vaccine, while students going to university or college for the first time should contact their GP to have the vaccine before the start of the academic year.
The Men C vaccine used to be given at 3 months but has now been discontinued as there are almost no cases of Men C disease in babies or young children in the UK. All children will continue to be offered the Hib/Men C vaccine at one year of age, and the Men ACWY vaccine at 14 years of age to provide protection across all age groups.
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This question is part of the following fields:
- Children And Young People
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Question 26
Correct
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A 35-year-old woman comes in for a postnatal check-up after an emergency C-section 10 weeks ago. She has also scheduled her baby's first set of routine immunizations for today. During the appointment, she inquires about the MenB vaccine and asks when it is typically administered.
Your Answer: At 2, 4 and 12-13 months
Explanation:The MenB vaccine is administered at 2, 4, and 12-13 months and has been incorporated into the routine vaccination schedule in the UK, making it the first country to do so. The vaccine replaces the MenC vaccine, which was discontinued in 2016. In addition to infants, individuals with certain health conditions, such as asplenia or splenic dysfunction, sickle cell anaemia, coeliac disease, and complement disorders, are also recommended to receive the MenB vaccine. It is important to note that the vaccine doesn’t contain live bacteria and therefore cannot cause meningococcal disease.
The UK immunisation schedule recommends certain vaccines at different ages. At birth, the BCG vaccine is given if the baby is at risk of tuberculosis. At 2, 3, and 4 months, the ‘6-1 vaccine’ (diphtheria, tetanus, whooping cough, polio, Hib and hepatitis B) and oral rotavirus vaccine are given, along with Men B and PCV at specific intervals. At 12-13 months, the Hib/Men C, MMR, PCV, and Men B vaccines are given. At 3-4 years, the ‘4-in-1 Preschool booster’ (diphtheria, tetanus, whooping cough and polio) and MMR vaccines are given. At 12-13 years, the HPV vaccination is given, and at 13-18 years, the ‘3-in-1 teenage booster’ (tetanus, diphtheria and polio) and Men ACWY vaccines are given. Additionally, the flu vaccine is recommended annually for children aged 2-8 years.
It is important to note that the meningitis ACWY vaccine has replaced meningitis C for 13-18 year-olds due to an increased incidence of meningitis W disease in recent years. The ACWY vaccine is also offered to new students up to the age of 25 years at university. GP practices will automatically send letters inviting 17-and 18-year-olds in school year 13 to have the Men ACWY vaccine, while students going to university or college for the first time should contact their GP to have the vaccine before the start of the academic year.
The Men C vaccine used to be given at 3 months but has now been discontinued as there are almost no cases of Men C disease in babies or young children in the UK. All children will continue to be offered the Hib/Men C vaccine at one year of age, and the Men ACWY vaccine at 14 years of age to provide protection across all age groups.
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This question is part of the following fields:
- Children And Young People
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Question 27
Correct
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A 35-year-old overweight woman comes to the surgery seeking guidance on birth control. Her BMI is 38 kg/m^2. What is the appropriate prescription for her?
Your Answer: Desogestrel (Cerazette) 75 mcg od (standard dose)
Explanation:Counselling for Women Considering the Progestogen-Only Pill
Women who are considering taking the progestogen-only pill (POP) should receive counselling on various aspects of the medication. One of the most common potential adverse effects is irregular vaginal bleeding. It is important to note that the POP should be taken at the same time every day, without a pill-free break, unlike the combined oral contraceptive (COC).
When starting the POP, immediate protection is provided if commenced up to and including day 5 of the cycle. If started later, additional contraceptive methods such as condoms should be used for the first 2 days. If switching from a COC, immediate protection is provided if continued directly from the end of a pill packet.
In case of missed pills, if the delay is less than 3 hours, the pill should be taken as usual. If the delay is more than 3 hours, the missed pill should be taken as soon as possible, and extra precautions such as condoms should be used until pill taking has been re-established for 48 hours.
It is important to note that antibiotics have no effect on the POP, unless the antibiotic alters the P450 enzyme system. Liver enzyme inducers may reduce the effectiveness of the POP. In case of diarrhoea and vomiting, the POP should be continued, but it should be assumed that pills have been missed.
Finally, it is important to discuss sexually transmitted infections (STIs) with healthcare providers when considering the POP. By providing comprehensive counselling, women can make informed decisions about whether the POP is the right contraceptive choice for them.
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This question is part of the following fields:
- Maternity And Reproductive Health
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Question 28
Incorrect
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A 28-year-old woman complains of sudden pain in her left elbow and right ankle. She also reports experiencing dysuria, conjunctivitis, and fever. She returned from a trip to South America 4 weeks ago where she had unprotected sex. She has developed hard tender papules, scaly plaques, and pustules on her hands.
What is the most probable diagnosis?Your Answer: Syphilitic arthritis
Correct Answer: Reactive arthritis
Explanation:Differentiating Between Arthritis Types: A Brief Overview
Arthritis can present in various forms, making it crucial to differentiate between them for proper diagnosis and treatment. Here are some key features to look out for:
Reactive Arthritis: This type is characterized by a triad of nonspecific urethritis, conjunctivitis, and arthritis. It may follow bacterial dysentery or exposure to sexually transmitted infections. Patients may also have Achilles tendonitis or plantar fasciitis, as well as circinate balanitis, keratoderma blenorrhagica, and skin lesions on the hands and feet.
Gonococcal Arthritis: This is a rare type of arthritis caused by disseminated gonococcal infection. It presents with asymmetric migratory arthralgia, which tends to involve the upper extremities more than the lower extremities. Symptoms may resolve spontaneously or evolve into septic arthritis.
HIV-Associated Psoriasis and Psoriatic Arthritis: Patients with HIV may experience more severe symptoms of psoriasis and psoriatic arthritis than non-HIV-infected patients. Reactive arthritis can also be severe in HIV-infected patients.
Psoriatic Arthritis: Patients with psoriatic arthritis share many features with those with reactive arthritis, including histologically identical skin lesions. However, patients with psoriasis have fewer constitutional symptoms but may have an asymmetric pattern, sausage digits, and distal interphalangeal joint involvement.
Syphilitic Arthritis: This is a rare late feature of syphilis and presents as monoarthritis.
By understanding the unique features of each type of arthritis, healthcare professionals can provide appropriate care and management for their patients.
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This question is part of the following fields:
- Musculoskeletal Health
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Question 29
Incorrect
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A woman wants advice about air travel while pregnant. She wants to visit her mother who is unwell. The flight will be 6 hours in duration. She will be 28 weeks pregnant at the time of the flight. There have been no complications during this pregnancy. She wants to know how late into the pregnancy she is allowed to fly.
What would you advise her about air travel for an uncomplicated single pregnancy?Your Answer: Most airlines will not let a person fly after week 37 of pregnancy
Correct Answer: Most airlines will not let a person fly after week 24 of pregnancy
Explanation:Airline Restrictions for Pregnant Passengers
Most airlines have restrictions on pregnant passengers flying beyond a certain gestation period. For single, uncomplicated pregnancies, the limit is usually week 37, while for those carrying twins or more, it is week 32. This is due to the increased risks of medical conditions and the possibility of going into labor while in the air.
In addition to these restrictions, pregnant passengers should also be advised on how to prevent deep vein thrombosis (DVT) during flights longer than four hours. This includes walking when possible, doing in-seat exercises, staying hydrated, and wearing compression stockings. The Royal College of Obstetricians and Gynaecologists (RCOG) provides a helpful patient leaflet on this topic.
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This question is part of the following fields:
- Infectious Disease And Travel Health
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Question 30
Incorrect
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What is the accurate statement about meningitis in newborn infants?
Your Answer: Is most commonly caused by Haemophilus influenza
Correct Answer: It always presents as a febrile illness
Explanation:Sepsis in Newborns: Apnoeic Episodes and Potential Consequences
Sepsis is a common issue in newborns, often presenting as apnoeic episodes. In the initial stages, the fontanelle may appear normal. The most frequent cause of sepsis in newborns is group B Streptococcus, which can be acquired during or after delivery. Unfortunately, the mortality rate for infants with sepsis is between 5-15%. Even those who survive may experience long-term consequences such as learning difficulties, speech problems, visual impairment, or neural deafness. Additionally, meningomyelocele is a risk factor for the introduction of meningeal infection.
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This question is part of the following fields:
- Children And Young People
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