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Question 1
Incorrect
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You are assessing a 67-year-old woman with longstanding varicose veins. A couple of weeks ago, she experienced pain and redness around one of them, which resolved after using ibuprofen gel for a few weeks. Upon examination, her legs appear normal except for the varicose veins, and she has normal distal pulses. Based on current NICE guidelines, what is the most suitable next step in management?
Your Answer: Arrange an ankle-brachial pressure index (ABPI)
Correct Answer: Routine referral to vascular services
Explanation:Patients with varicose veins and a history of superficial thrombophlebitis should be referred for routine referral to vascular services according to NICE guidance. This condition is usually self-limiting but has a high likelihood of recurrence without treatment. Dermatology is not involved in this condition, and ABPI is usually used in the context of peripheral arterial disease or compression bandaging. Class 2 compression stockings are used in the treatment of varicose veins without complications in primary care.
Understanding Varicose Veins
Varicose veins are enlarged and twisted veins that occur when the valves in the veins become weak or damaged, causing blood to flow backward and pool in the veins. They are most commonly found in the legs and can be caused by various factors such as age, gender, pregnancy, obesity, and genetics. While many people seek treatment for cosmetic reasons, others may experience symptoms such as aching, throbbing, and itching. In severe cases, varicose veins can lead to skin changes, bleeding, superficial thrombophlebitis, and venous ulceration.
To diagnose varicose veins, a venous duplex ultrasound is typically performed to detect retrograde venous flow. Treatment options vary depending on the severity of the condition. Conservative treatments such as leg elevation, weight loss, regular exercise, and compression stockings may be recommended for mild cases. However, patients with significant or troublesome symptoms, skin changes, or a history of bleeding or ulcers may require referral to a specialist for further evaluation and treatment. Possible treatments include endothermal ablation, foam sclerotherapy, or surgery.
In summary, varicose veins are a common condition that can cause discomfort and cosmetic concerns. While many cases do not require intervention, it is important to seek medical attention if symptoms or complications arise. With proper diagnosis and treatment, patients can manage their condition and improve their quality of life.
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This question is part of the following fields:
- Cardiovascular Health
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Question 2
Correct
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A 63-year-old Caucasian man with a history of hypertension and gout presented to the clinic seeking advice on controlling his blood pressure. He has been experiencing high blood pressure readings at home for the past week, with an average reading of 150/95 mmHg. He is currently asymptomatic and denies any chest discomfort. He is a non-smoker and non-drinker. His current medications include amlodipine and allopurinol, which he has been tolerating well. He has no known drug allergies. His recent blood test results are as follows:
- Sodium (Na+): 138 mmol/L (135 - 145)
- Potassium (K+): 4.0 mmol/L (3.5 - 5.0)
- Bicarbonate: 28 mmol/L (22 - 29)
- Urea: 6.7 mmol/L (2.0 - 7.0)
- Creatinine: 110 µmol/L (55 - 120)
What is the most appropriate next step in managing his hypertension?Your Answer: Add an angiotensin receptor blocker
Explanation:To improve poorly controlled hypertension in a patient already taking a calcium channel blocker, NICE recommends adding an angiotensin receptor blocker, an ACE inhibitor, or a thiazide-like diuretic as step 2 management. In this case, the correct answer is to add an angiotensin receptor blocker, as the patient’s home blood pressure readings have remained uncontrolled despite maximum dose of amlodipine. Increasing amlodipine to 20 mg once a day is not recommended, and thiazide-like diuretic should be used with caution due to the patient’s history of gout. Aldosterone antagonist and alpha-blocker are not appropriate at this stage of hypertensive management.
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:
- Cardiovascular Health
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Question 3
Incorrect
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A 65-year-old man presents for review. He has been recently diagnosed with congestive heart failure. Currently, he takes digoxin 0.25 mg daily, furosemide 40 mg daily and amiloride 5 mg daily.
Routine laboratory studies are normal except for a blood urea of 8 mmol/l (2.5-7.5) and a serum creatinine of 110 μmol/L (60-110).
One month later, the patient continues to have dyspnoea and orthopnoea and has noted a 4 kg reduction in weight. His pulse rate is 96 per minute, blood pressure is 132/78 mmHg. Physical examination is unchanged except for reduced crackles, JVP is no longer visible and there is no ankle oedema.
Repeat investigations show:
Urea 10.5 mmol/L (2.5-7.5)
Creatinine 120 µmol/L (60-110)
Sodium 135 mmol/L (137-144)
Potassium 3.5 mmol/L (3.5-4.9)
Digoxin concentration within therapeutic range.
What would be the next most appropriate change to make to his medication?Your Answer: Reassure and schedule a follow up appointment in one month
Correct Answer: Add lisinopril 2.5 mg daily
Explanation:The Importance of ACE Inhibitors in Heart Failure Treatment
Angiotensin converting enzyme (ACE) inhibitors are crucial drugs in the treatment of heart failure. They offer a survival advantage and are the primary treatment for heart failure, unless contraindicated. These drugs work by reducing peripheral vascular resistance through the blockage of the angiotensin converting enzyme. This action decreases myocardial oxygen consumption, improving cardiac output and moderating left ventricular and vascular hypertrophy.
ACE inhibitors are particularly effective in treating congestive heart failure (CHF) caused by systolic dysfunction. However, first dose hypotension may occur, especially if the patient is already on diuretics. These drugs are also beneficial in protecting renal function, especially in cases of significant proteinuria. An increase of 20% in serum creatinine levels is not uncommon and is not a reason to discontinue the medication.
It is important to note that potassium levels can be affected by ACE inhibitors, and this patient is already taking several drugs that can alter potassium levels. The introduction of an ACE inhibitor may increase potassium levels, which would need to be monitored carefully. If potassium levels become too high, the amiloride may need to be stopped or substituted with a higher dose of furosemide. Overall, ACE inhibitors play a crucial role in the treatment of heart failure and should be carefully monitored to ensure their effectiveness and safety.
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This question is part of the following fields:
- Cardiovascular Health
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Question 4
Incorrect
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Which Antihypertensive medication is banned for use by professional athletes?
Your Answer: Bisoprolol
Correct Answer: Doxazosin
Explanation:Prohibited Substances in Sports
Beta-blockers and diuretics are among the substances prohibited in certain sports. In billiards and archery, the use of beta-blockers is not allowed as they can enhance performance by reducing anxiety and tremors. On the other hand, diuretics are generally prohibited as they can be used as masking agents to hide the presence of other banned substances. It is important to note that diuretics can be found in some combination products, such as Cozaar-Comp which contains hydrochlorothiazide. Athletes should be aware of the substances they are taking and ensure that they are not violating any anti-doping regulations.
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This question is part of the following fields:
- Cardiovascular Health
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Question 5
Incorrect
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A 56-year-old man with a history of smoking, obesity, prediabetes, and high cholesterol visits his GP complaining of chest pains that occur during physical activity or climbing stairs to his office. The pain is crushing in nature and subsides with rest. The patient is currently taking atorvastatin 20 mg and aspirin 75 mg daily. He has no chest pains at the time of the visit and is otherwise feeling well. Physical examination reveals no abnormalities. The GP prescribes a GTN spray for the chest pains and refers the patient to the rapid access chest pain clinic.
What other medication should be considered in addition to the GTN?Your Answer: Modified-release nifedipine
Correct Answer: Bisoprolol
Explanation:For the patient with stable angina, it is recommended to use a beta-blocker or a calcium channel blocker as the first-line treatment to prevent angina attacks. In this case, a cardioselective beta-blocker like bisoprolol or atenolol, or a rate-limiting calcium channel blocker such as verapamil or diltiazem should be considered while waiting for chest clinic assessment.
As the patient is already taking aspirin 75 mg daily, there is no need to prescribe dual antiplatelet therapy. Aspirin is the preferred antiplatelet for stable angina.
Since the patient is already taking atorvastatin, a fibrate like ezetimibe may not be necessary for lipid modification. However, if cholesterol levels or cardiovascular risk remain high, increasing the atorvastatin dose or encouraging positive lifestyle interventions like weight loss and smoking cessation can be helpful.
It is important to note that nifedipine, a dihydropyridine calcium channel blocker, is not recommended as the first-line treatment for angina management as it has limited negative inotropic effects. It can be used in combination with a beta-blocker if monotherapy is insufficient for symptom control.
Angina pectoris can be managed through lifestyle changes, medication, percutaneous coronary intervention, and surgery. In 2011, NICE released guidelines for the management of stable angina. Medication is an important aspect of treatment, and all patients should receive aspirin and a statin unless there are contraindications. Sublingual glyceryl trinitrate can be used to abort angina attacks. NICE recommends using either a beta-blocker or a calcium channel blocker as first-line treatment, depending on the patient’s comorbidities, contraindications, and preferences. If a calcium channel blocker is used as monotherapy, a rate-limiting one such as verapamil or diltiazem should be used. If used in combination with a beta-blocker, a longer-acting dihydropyridine calcium channel blocker like amlodipine or modified-release nifedipine should be used. Beta-blockers should not be prescribed concurrently with verapamil due to the risk of complete heart block. If initial treatment is ineffective, medication should be increased to the maximum tolerated dose. If a patient is still symptomatic after monotherapy with a beta-blocker, a calcium channel blocker can be added, and vice versa. If a patient cannot tolerate the addition of a calcium channel blocker or a beta-blocker, long-acting nitrate, ivabradine, nicorandil, or ranolazine can be considered. If a patient is taking both a beta-blocker and a calcium-channel blocker, a third drug should only be added while awaiting assessment for PCI or CABG.
Nitrate tolerance is a common issue for patients who take nitrates, leading to reduced efficacy. NICE advises patients who take standard-release isosorbide mononitrate to use an asymmetric dosing interval to maintain a daily nitrate-free time of 10-14 hours to minimize the development of nitrate tolerance. However, this effect is not seen in patients who take once-daily modified-release isosorbide mononitrate.
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This question is part of the following fields:
- Cardiovascular Health
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Question 6
Incorrect
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A 68-year-old man visits his General Practitioner for a check-up. He is taking warfarin for a mechanical aortic valve and has a history of trigeminal neuralgia, depression, and COPD. During an INR check, his INR is found to be subtherapeutic at 1.5. Which drug is most likely to cause a decrease in his INR if co-prescribed with warfarin therapy? Choose ONE answer.
Your Answer: Sertraline
Correct Answer: Carbamazepine
Explanation:Interactions with Warfarin: Understanding the Effects of Carbamazepine, Alcohol, Clarithromycin, Prednisolone, and Sertraline
Warfarin is a commonly prescribed anticoagulant medication that requires careful monitoring to ensure its effectiveness and safety. However, several factors can interact with warfarin and affect its metabolism and anticoagulant effect. Here are some examples:
Carbamazepine is a medication used to manage trigeminal neuralgia, but it is also a hepatic enzyme inducer. This means that it can accelerate the metabolism of warfarin, leading to a reduced effect and a decreased international normalized ratio (INR).
Alcohol consumption can enhance the effects of warfarin, which can increase the risk of bleeding. Therefore, patients on warfarin should avoid heavy drinking or binge drinking.
Clarithromycin is an antibiotic that may be prescribed for a COPD exacerbation. However, it is associated with reduced warfarin metabolism and enhanced anticoagulant effect, which can lead to a raised INR.
Prednisolone is a steroid medication that may also be prescribed for a COPD exacerbation. It is associated with an enhanced anticoagulant effect, which can increase the risk of bleeding when taken with warfarin.
Sertraline is an antidepressant medication that belongs to the selective serotonin reuptake inhibitor (SSRI) class. SSRIs have an antiplatelet effect, which can also increase the risk of bleeding when taken with warfarin.
In summary, understanding the interactions between warfarin and other medications or substances is crucial for managing its anticoagulant effect and preventing adverse events. Patients on warfarin should always inform their healthcare providers of any new medications or supplements they are taking to avoid potential interactions.
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This question is part of the following fields:
- Cardiovascular Health
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Question 7
Correct
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A 72-year-old man who rarely visits the clinic is brought in by his daughter with complaints of orthopnoea, paroxysmal nocturnal dyspnoea and swollen ankles that have been present for a few weeks. On examination, he has bilateral basal crepitations and a resting heart rate of 110 beats per minute. An ECG shows sinus rhythm and an echocardiogram reveals a reduced ejection fraction. He responds well to treatment with optimal doses of an ACE inhibitor and furosemide. What is the most accurate statement regarding his future management?
Your Answer: He should be started on a ß-blocker
Explanation:Treatment Options for Chronic Heart Failure
Chronic heart failure is a serious condition that requires proper management to improve patient outcomes. One of the recommended treatment options is the prescription of a cardioselective β-blocker such as carvedilol. However, it should not be taken at the same time as an ACE inhibitor. While diuretics can help control oedema, the mainstay of treatment for chronic heart failure is ACE inhibitors and β-blockade. Although digoxin and spironolactone may have a place in treatment, they are not first or second line options. For severe cases of heart failure, biventricular pacing with an implantable defibrillator can be useful. Overall, a combination of these treatment options can help manage chronic heart failure and improve patient outcomes.
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This question is part of the following fields:
- Cardiovascular Health
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Question 8
Incorrect
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Which beta blocker has been approved for treating heart failure?
Your Answer: Propranolol
Correct Answer: Acebutolol
Explanation:Heart Failure Treatment Options
According to the 2010 update by the National Institute for Health and Care Excellence (NICE), there are several medications that are indicated for the treatment of heart failure. These medications include bisoprolol, metoprolol succinate, carvedilol, and nebivolol. These drugs are commonly used to manage heart failure symptoms and improve overall heart function. It is important to consult with a healthcare provider to determine the best treatment plan for each individual case of heart failure. With proper medication management, individuals with heart failure can experience improved quality of life and better outcomes.
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This question is part of the following fields:
- Cardiovascular Health
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Question 9
Incorrect
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A 68-year-old woman with a history of atrial fibrillation presents for a follow-up appointment. She recently experienced a transient ischemic attack and is currently taking bendroflumethiazide for hypertension. Her blood pressure at the appointment is 130/80 mmHg. As you discuss management options to decrease her risk of future strokes, what is her CHA2DS2-VASc score?
Your Answer: 3
Correct Answer: 4
Explanation:Atrial fibrillation (AF) is a condition that requires careful management, including the use of anticoagulation therapy. The latest guidelines from NICE recommend assessing the need for anticoagulation in all patients with a history of AF, regardless of whether they are currently experiencing symptoms. The CHA2DS2-VASc scoring system is used to determine the most appropriate anticoagulation strategy, with a score of 2 or more indicating the need for anticoagulation. However, it is important to ensure a transthoracic echocardiogram has been done to exclude valvular heart disease, which is an absolute indication for anticoagulation.
When considering anticoagulation therapy, doctors must also assess the patient’s bleeding risk. NICE recommends using the ORBIT scoring system to formalize this risk assessment, taking into account factors such as haemoglobin levels, age, bleeding history, renal impairment, and treatment with antiplatelet agents. While there are no formal rules on how to act on the ORBIT score, individual patient factors should be considered. The risk of bleeding increases with a higher ORBIT score, with a score of 4-7 indicating a high risk of bleeding.
For many years, warfarin was the anticoagulant of choice for AF. However, the development of direct oral anticoagulants (DOACs) has changed this. DOACs have the advantage of not requiring regular blood tests to check the INR and are now recommended as the first-line anticoagulant for patients with AF. The recommended DOACs for reducing stroke risk in AF are apixaban, dabigatran, edoxaban, and rivaroxaban. Warfarin is now used second-line, in patients where a DOAC is contraindicated or not tolerated. Aspirin is not recommended for reducing stroke risk in patients with AF.
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This question is part of the following fields:
- Cardiovascular Health
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Question 10
Incorrect
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An 80-year-old man presents to the clinic with complaints of recurrent falls and syncopal attacks. He reports that a few of these episodes have occurred while he was getting dressed for church, putting on his shirt and tie; others have happened while he was out shopping, and one at the church itself. He explains that sometimes he doesn't actually lose consciousness, but just feels extremely dizzy, and on other occasions he passes out completely.
The patient has a medical history of hypertension, which is being managed with amlodipine, and dyslipidaemia, for which he takes 10 mg of atorvastatin. On examination, his blood pressure is 150/88, his pulse is 65 and regular, and his heart sounds are normal. His chest is clear.
Investigations reveal a haemoglobin level of 130 g/L (135-180), a white cell count of 4.9 ×109/L (4-10), platelets of 222 ×109/L (150-400), sodium of 139 mmol/L (134-143), potassium of 5.0 mmol/L (3.5-5), and creatinine of 139 μmol/L (60-120). His ECG shows sinus rhythm with an inferior lead Q wave (lead III only), and a 72-hour ECG doesn't identify any significant rhythm disturbance.
What is the most likely diagnosis?Your Answer: Carotid sinus hypersensitivity
Correct Answer: Sick sinus syndrome
Explanation:Carotid Sinus Hypersensitivity and Differential Diagnosis
The history of syncope during dressing for church, particularly when putting on a collared shirt, may suggest the possibility of carotid sinus hypersensitivity. To diagnose this condition, a tilt table test is the optimal method, but it is important to exclude significant carotid artery stenosis before performing carotid sinus massage. In patients with bradycardia carotid sinus hypersensitivity, cardiac pacing is the preferred treatment.
Ménière’s disease is unlikely to be the cause of syncope in this case, as it typically presents with a triad of dizziness, deafness, and tinnitus. Sick sinus syndrome is also less likely, as it often manifests with sinus bradycardia, sinoatrial block, and alternating bradycardia and tachycardia. However, a Q wave in one inferior lead (III) may be a normal finding.
In summary, when evaluating syncope, it is important to consider carotid sinus hypersensitivity as a potential cause and to differentiate it from other conditions such as Ménière’s disease and sick sinus syndrome.
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This question is part of the following fields:
- Cardiovascular Health
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