-
Question 1
Incorrect
-
A 75-year-old woman is recuperating from an inguinal hernia surgery when she experiences a severe ischemic stroke. She is being treated on the rehabilitation ward. Nevertheless, she is still unable to eat securely, and multiple swallowing evaluations have revealed that she has a tendency to aspirate. What is the most suitable alternative for long-term feeding?
Your Answer: Feeding jejunostomy
Correct Answer: PEG tube feeding
Explanation:Although PEG tubes are linked to a considerable amount of morbidity, they are the most suitable choice for a long-term solution. A feeding jejunostomy necessitates the use of general anesthesia. TPN is not a viable alternative. Long-term nasogastric feeding is typically inadequate.
Enteral feeding is a method of providing nutrition to patients who are malnourished or at risk of malnutrition and have a functional gastrointestinal tract. It involves administering food directly into the stomach through a tube, which can be placed either through the nose (nasogastric tube) or directly into the stomach (gastrostomy tube). The type of tube used depends on the patient’s condition and the presence of upper gastrointestinal dysfunction.
To ensure safe and effective enteral feeding, healthcare professionals must check the placement of the tube using aspiration and pH tests. Gastric feeding is preferred, but if there is upper GI dysfunction, duodenal or jejunal tubes may be used. Patients in intensive care units (ICUs) should receive continuous feeding for 16-24 hours, and a motility agent may be used to aid gastric emptying. If this is ineffective, post-pyloric feeding or parenteral feeding may be considered.
Complications of enteral feeding include diarrhoea, aspiration, hyperglycaemia, and refeeding syndrome. Patients who are identified as malnourished or at risk of malnutrition should be considered for enteral feeding, especially if they have a BMI below 18.5 kg/m2, unintentional weight loss of more than 10% over 3-6 months, or a BMI below 20 kg/m2 and unintentional weight loss of more than 5% over 3-6 months. Surgical patients who are malnourished, have an unsafe swallow or inadequate oral intake, and have a functional GI tract may benefit from preoperative enteral feeding.
It is important to note that PEG tubes should not be removed until at least 2 weeks after insertion, and surgical patients due to have major abdominal surgery should be carefully evaluated before enteral feeding is initiated. Overall, enteral feeding is a valuable tool for providing nutrition to patients who are unable to eat normally, but it must be used with caution and under the guidance of a healthcare professional.
-
This question is part of the following fields:
- Surgery
-
-
Question 2
Correct
-
A father brings his 5-year-old daughter to the paediatric emergency department. She has a fever and he has noticed raised nodes on her neck. Despite giving her paracetamol and ibuprofen, her temperature is not decreasing. Her lips have become extremely dry and cracked, and her tongue is red and slightly swollen. The father has also noticed that her feet are now red and puffy, and she is developing a widespread fine rash. What is the probable diagnosis?
Your Answer: Kawasaki's disease
Explanation:An eruption characterized by tender papules and vesicles can develop on the hands and feet. Measles typically presents with a fever and symptoms of a cold. Koplik’s spots, which are bright red with a bluish white center, may appear on the oral mucosa. A maculopapular rash usually appears 3-5 days later. Parvovirus B19 is commonly referred to as slapped cheek syndrome. Scarlet fever may also cause an inflamed tongue, but it would not account for the red and swollen feet that later peel.
Understanding Kawasaki Disease
Kawasaki disease is a rare type of vasculitis that primarily affects children. It is important to identify this disease early on as it can lead to serious complications, such as coronary artery aneurysms. The disease is characterized by a high-grade fever that lasts for more than five days and is resistant to antipyretics. Other symptoms include conjunctival injection, bright red, cracked lips, strawberry tongue, cervical lymphadenopathy, and red palms and soles that later peel.
Diagnosis of Kawasaki disease is based on clinical presentation as there is no specific diagnostic test available. Management of the disease involves high-dose aspirin, which is one of the few indications for aspirin use in children. Intravenous immunoglobulin is also used as a treatment option. Echocardiogram is the initial screening test for coronary artery aneurysms, rather than angiography.
Complications of Kawasaki disease can be serious, with coronary artery aneurysm being the most common. It is important to recognize the symptoms of Kawasaki disease early on and seek medical attention promptly to prevent potential complications.
-
This question is part of the following fields:
- Paediatrics
-
-
Question 3
Correct
-
A 54-year-old man with a lengthy history of alcoholic cirrhosis reported experiencing intense dysphagia and a burning sensation in his retrosternal area. While performing an oesophagoscopy, the endoscopist inserted the endoscope until it reached the oesophageal hiatus of the diaphragm.
At which vertebral level is it most probable that the endoscope tip reached?Your Answer: T10
Explanation:Vertebral Levels and Their Corresponding Anatomical Structures
T10 vertebral level is where the oesophageal hiatus is located, allowing the oesophagus and branches of the vagus to pass through. T7 vertebral level corresponds to the inferior angle of the scapula and where the hemiazygos veins cross the midline to reach the azygos vein. The caval opening, which is traversed by the inferior vena cava, is found at T8 vertebral level. T9 is the level of the xiphoid process. Finally, the aortic hiatus, which is traversed by the descending aorta, azygos and hemiazygos veins, and the thoracic duct, is located at T12 vertebral level. Understanding these anatomical structures and their corresponding vertebral levels is important in clinical practice.
-
This question is part of the following fields:
- Gastroenterology
-
-
Question 4
Incorrect
-
A 42-year-old man presents to A&E with sudden onset of severe epigastric pain and bright red blood in his vomit. He has a long history of heavy alcohol consumption. On examination, he has guarding over the epigastric region and cool extremities. He also has a distended abdomen with ascites and spider naevi on his neck and cheek. The patient is unstable hemodynamically, and fluid resuscitation is initiated. What is the most crucial medication to begin given the probable diagnosis?
Your Answer: Tranexamic acid
Correct Answer: Terlipressin
Explanation:Medications for Oesophageal Variceal Bleeds
Oesophageal variceal bleeds are a serious medical emergency that require prompt treatment. The most important medication to administer in this situation is terlipressin, which reduces bleeding by constricting the mesenteric arterial circulation and decreasing portal venous inflow. Clopidogrel, an antiplatelet medication, should not be used as it may worsen bleeding. Propranolol, a beta-blocker, can be used prophylactically to prevent variceal bleeding but is not the most important medication to start in an acute setting. Omeprazole, a proton pump inhibitor, is not recommended before endoscopy in the latest guidelines but is often used in hospital protocols. Tranexamic acid can aid in the treatment of acute bleeding but is not indicated for oesophageal variceal bleeds. Following terlipressin administration, band ligation should be performed, and if bleeding persists, TIPS should be considered.
-
This question is part of the following fields:
- Gastroenterology
-
-
Question 5
Incorrect
-
These results were obtained from a 43-year-old female. Her serum levels showed an elevated level of aldosterone and a low level of renin. Specifically, her Na+ level was 154 mmol/l (135–145 mmol/l) and her K+ level was 3.7 mmol/l (3.5–5 mmol/l). What condition are these results consistent with?
Your Answer: Addison’s disease
Correct Answer: Conn’s syndrome
Explanation:Electrolyte Imbalances in Various Conditions and Treatments
Conn’s Syndrome and Hyperaldosteronism
Conn’s syndrome is a type of primary hyperaldosteronism caused by the overproduction of aldosterone in the adrenal glands due to an adrenal adenoma. This results in elevated levels of aldosterone, causing water retention and increased excretion of potassium. Renin levels are low in this condition due to the raised sodium and plasma volume. Patients with Conn’s syndrome are typically hypertensive, but it is important to note that some patients may have normal potassium levels.Addison’s Disease and Adrenal Gland Failure
Addison’s disease is caused by adrenal gland failure, resulting in a deficiency of glucocorticoids and mineralocorticoids. This leads to sodium loss and potassium retention.Renal Artery Stenosis and Secondary Hyperaldosteronism
Patients with renal artery stenosis may also exhibit elevated sodium and low potassium levels. However, in this case, renin levels are elevated due to reduced renal perfusion, leading to secondary hyperaldosteronism.Bartter Syndrome and Congenital Salt-Wasting
Bartter syndrome is a congenital condition that causes salt-wasting due to a defective channel in the loop of Henle. This results in sodium and chloride leakage, leading to hypokalemia and metabolic alkalosis. Renin and aldosterone production are increased in response to sodium and volume depletion.Furosemide Treatment and Loop Diuretics
Furosemide is a loop diuretic that promotes sodium and chloride excretion, leading to potassium loss. Patients undergoing furosemide treatment may exhibit hyponatremia and hypokalemia. -
This question is part of the following fields:
- Endocrinology
-
-
Question 6
Correct
-
A 70-year old man is being evaluated by the respiratory team for progressive cough and shortness of breath over the last 10 months. He has no history of smoking and is typically healthy. The only notable change in his lifestyle is that he recently started breeding pigeons after retiring. Upon examination, the patient is diagnosed with interstitial pneumonia.
What is the most frequently linked organism with interstitial pneumonia?Your Answer: Mycoplasma
Explanation:Types of Bacterial Pneumonia and Their Patterns in the Lung
Bacterial pneumonia can be caused by various organisms, each with their own unique patterns in the lung. Mycoplasma, viruses like RSV and CMV, and fungal infections like histoplasmosis typically cause interstitial patterns in the lung. Haemophilus influenzae, Staphylococcus, Pneumococcus, Escherichia coli, and Klebsiella all typically have the same alveolar pattern, with Klebsiella often causing an aggressive, necrotizing lobar pneumonia. Streptococcus pneumoniae is the most common cause of typical bacterial pneumonia, while Staphylococcus aureus pneumonia is typically of the alveolar type and seen in intravenous drug users or patients with underlying debilitating conditions. Mycoplasma pneumonia may also have extra-pulmonary manifestations. These conditions are sometimes referred to as atypical pneumonia.
-
This question is part of the following fields:
- Respiratory
-
-
Question 7
Incorrect
-
You are summoned to the death of an 80-year-old male on the geriatric care unit. He has a lengthy record of breathlessness linked with heart failure and the nursing staff reports that he abruptly collapsed and passed away. No resuscitation was attempted. What is the most suitable single cause of death that you can record on the death certificate?
Your Answer: Cardiac arrest
Correct Answer: Ischaemic heart disease
Explanation:Guidelines for Filling out Death Certificates
When filling out a death certificate, it is important to note that modes of death such as cardiac arrest, syncope, and respiratory arrest are not acceptable as underlying causes of death. Instead, the cause of death should be a pathological condition such as heart disease or a heart attack. Only in limited circumstances should old age, senility, or frailty of old age be given as the sole cause of death. These circumstances include personally caring for the deceased over a long period, observing a gradual decline in the patient’s health, not being aware of any identifiable disease or injury that contributed to the death, and being certain that there is no reason to report the death to the coroner.
If old age or frailty is mentioned, it should only be as a contributory cause and not the sole cause of death. It is important to have supporting information from the patient’s medical records and any relevant investigations. Additionally, the patient’s family may request further investigation if they do not believe old age is an adequate explanation for their relative’s death. If a death is certified as due to old age or senility alone, it will usually be referred to the coroner unless the deceased was 80 or older, all the conditions listed above are fulfilled, and there is no other reason to refer the death. It is important to follow these guidelines to ensure accurate and appropriate reporting of causes of death.
-
This question is part of the following fields:
- Miscellaneous
-
-
Question 8
Incorrect
-
A 60-year-old patient presents to their GP with a general feeling of unwellness. The following blood test results are obtained:
- Adjusted calcium: 2.5 mmol/L (normal range: 2.2-2.4)
- Phosphate: 1.6 mmol/L (normal range: 0.7-1.0)
- PTH: 2.05 pmol/L (normal range: 1.05-6.83)
- Urea: 32.8 mmol/L (normal range: 2.5-7.8)
- Creatinine: 160 µmol/L (normal range: 60-120)
- 25 OH Vit D: 56 nmol/L (optimal level >75)
What is the most likely diagnosis?Your Answer: CKD3
Correct Answer: Acute renal failure
Explanation:Biochemical Indicators of Dehydration-Induced Acute Kidney Injury
The biochemical indicators suggest that the patient is experiencing acute renal failure or acute kidney injury due to dehydration. The slightly elevated levels of calcium and phosphate indicate haemoconcentration, while the significantly increased urea levels compared to creatinine suggest AKI. A urea level of 32 mmol/L is common in AKI, but in a patient with stable chronic kidney disease, it would typically be associated with a much higher creatinine level.
It is important to note that chronic kidney disease often presents with multiple biochemical abnormalities that are not typically seen in AKI. These include hypocalcaemia, increased levels of PTH (secondary hyperparathyroidism in compensation for hypocalcaemia), and anaemia due to erythropoietin and iron deficiency. Therefore, the absence of these indicators in the patient’s blood work supports the diagnosis of dehydration-induced AKI.
-
This question is part of the following fields:
- Nephrology
-
-
Question 9
Correct
-
A 48-year-old man is brought to the emergency department by ambulance with multiple stab wounds. During clinical examination, eight stab wounds are identified on his abdomen and one on the front of his chest. His airway has been secured, and he is receiving oxygen at a rate of 15 L/min while IV fluid resuscitation has been initiated.
Following CT scans of his abdomen, the patient has been transferred to the operating room for an emergency laparotomy. The surgeons are assessing the condition of his spleen based on the CT and laparotomy findings to determine the next steps in his treatment.
What is one reason that may indicate the need for a splenectomy in this patient?Your Answer: Haemodynamic instability and complete devascularisation of the spleen
Explanation:When trauma patients experience uncontrollable bleeding in the spleen, a splenectomy may be necessary. CT imaging can be used to grade the severity of the splenic injury, with grades 1-3 typically managed conservatively if the patient is stable, and grades 4-5 often requiring surgical intervention. During emergency laparotomy, if certain findings such as uncontrollable bleeding, hilar vascular injuries, or a devascularized spleen are present, a splenectomy may be indicated.
Managing Splenic Trauma
The spleen is a commonly injured intra-abdominal organ, but in most cases, it can be conserved. The management of splenic trauma depends on several factors, including associated injuries, haemodynamic status, and the extent of direct splenic injury.
Conservative management is appropriate for small subcapsular haematomas, minimal intra-abdominal blood, and no hilar disruption. However, if there are increased amounts of intra-abdominal blood, moderate haemodynamic compromise, or tears or lacerations affecting less than 50%, laparotomy with conservation may be necessary.
In cases of hilar injuries, major haemorrhage, or major associated injuries, resection is the preferred management option. It is important to note that the management approach should be tailored to the individual patient’s needs and circumstances. Proper management of splenic trauma can help prevent further complications and improve patient outcomes.
-
This question is part of the following fields:
- Surgery
-
-
Question 10
Correct
-
What is the most effective method for diagnosing sleep apnoea syndrome?
Your Answer: Polygraphic sleep studies
Explanation:Sleep Apnoea
Sleep apnoea is a condition where breathing stops during sleep, causing frequent interruptions in sleep and restlessness. This leads to daytime drowsiness and irritability. Snoring is often associated with this condition. To diagnose sleep apnoea, a polygraphic recording of sleep is taken, which shows periods of at least 30 instances where breathing stops for 10 or more seconds in seven hours of sleep. These periods are also associated with a decrease in arterial oxygen saturation. the symptoms and diagnosis of sleep apnoea is important for proper treatment and management of the condition.
-
This question is part of the following fields:
- Respiratory
-
00
Correct
00
Incorrect
00
:
00
:
00
Session Time
00
:
00
Average Question Time (
Mins)