Cardiology Quiz | Cardiology MCQs and Answers

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Questions
81 A 58-year-old man has had an enlarging abdomen for several months. He has experienced no abdominal or chest pain. On physical examination he has a non-tender abdomen with no masses palpable, but there is a fluid thrill. An abdominal Ultrasound Scan shows a large abdominal fluid collection with a small cirrhotic liver. A chest X-ray shows a globally enlarged heart. Which of the following conditions is most likely to be present?
A Dilated cardiomyopathy
B Lymphocytic myocarditis
C Myocardial amyloid deposition
D Nonbacterial thrombotic endocarditis

Answer: Dilated cardiomyopathy
82 75 year-old man with a history of anterior MI is taking amiodarone 400mg/day for history of VT. He has a prolonged QT interval on his ECG.What is the most appropriate management?
A Admit to hospital for monitoring.
B Atenolol.
C Change amiodarone to flecainide.
D Discontinue amiodarone immediately.

Answer: Discontinue amiodarone immediately.
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83 Elevation of the jugular venous pressure during inspiration is most likely to be found in which of the following situations?
A a normal physical exam
B cardiac tamponade
C constrictive pericarditis
D dilated cardiomyopathy

Answer: constrictive pericarditis
84 A 17-year-old girl is short in stature for her age. She has not shown any changes of puberty. She has a webbed neck. Her vital signs include Temperature 36.6°C Respiratory rate 18/min Pulse 75 bpm and BP 165/85 mmHg. On physical examination, she has a continuous murmur heard over both the front of the chest as well as her back. Her lower extremities are cool with poor capillary filling. A chest radiograph reveals a prominent left heart border, no oedema or effusions, and rib notching. Which of the following pathologic lesions best explains these findings?
A Constriction of the aorta past the ductus arteriosus
B Lack of development of the spiral septum and partial absence of conus musculature
C Shortening and thickening of chordae tendineae of the mitral valve
D Single large atrioventricular valve

Answer: Constriction of the aorta past the ductus arteriosus
85 A 67 year old man presents with sudden onset atrial fibrillation (ventricular rate of 150/minute). His serum creatinine concentration was 250 umol/L (70-110). What is the main factor that determines the choice of loading dose of digoxin in this patient?
A Absorption
B Apparent volume of distribution
C Lipid solubility
D Renal clearance

Answer: Renal clearance
86 A 30-year-old intravenous drug abuser develops acute aortic regurgitation due to infective endocarditis. Which of the following is least likely to be found on clinical examination?
A mitral valve pre-closure
B peripheral vasodilatation
C decreased cardiac output
D hypotension

Answer: peripheral vasodilatation
87 Which ONE of the following is associated with Marfan's syndrome?
A Autosomal recessive inheritance
B increased upper : lower body ratio
C Mental retardation
D Retinal detachment

Answer: Retinal detachment
88 Which of the following is true regarding the action of Clopidogrel?
A It inhibits cyclo-oxygenase
B It is an ADP receptor antagonist
C It is a glycoprotein IIb/IIIa inhibitor
D It is a selective factor Xa inhibitor

Answer: It is an ADP receptor antagonist
89 Left axis deviation is seen on the ECG in which of the following conditions?
A atrioventricular canal defects.
B Ebstein's anomaly.
C large ventricular septal defect.
D patent ductus arteriosus.

Answer: atrioventricular canal defects.
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