Which of the following heart murmurs is only durin

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Which of the following heart murmurs is only during diastole?

A. Patent ductus arteriosus B. Mitral regurgitation C. Tricuspid valve stenosis D. Interventricular septal defect

Correct Answer: C

Rationale: Tricuspid valve stenosis produces a diastolic murmur due to obstructed flow during ventricular filling.

What will happen in case of high cholesterol levels:

A. Transcription of HMG CoA reductase's gene B. HMG CoA reductase is inhibited C. Hypercholesterolemia D. Both A and B

Correct Answer: B

Rationale: High cholesterol inhibits HMG CoA reductase to reduce further synthesis.

Which one of the following causes noninfectious myocarditis?

A. Coxsackie B B. HIV C. Vasculitis D. Corynebacterium diphtheria

Correct Answer: C

Rationale: Vasculitis causes noninfectious myocarditis, unlike the infectious agents listed.

Which of the following is considered as a cardiovascular complication due to hypertension?

A. Benign nephrosclerosis B. Hypertensive retinopathy C. Psychogenic D. Coarctation of the aorta

Correct Answer: B

Rationale: Hypertensive retinopathy is a direct cardiovascular complication of hypertension.

Which of the following drugs act by blocking Na/K ATPase thus increasing cardiac muscle contractility?

A. Dobutamine B. Milrinone C. Digoxin D. Hydralazine

Correct Answer: C

Rationale: Digoxin inhibits Na/K ATPase, increasing intracellular calcium and contractility.

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