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Mcqs MBBS Exams India
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(Single Best Answer) Question 661: Which among the following is short RP tachycardia ?
A) atypical AVNRT
B) AVRT with slowly conducting pathway
C) orthodromic AVRT
D) sinus node re-entry
Answer (Select an option above to get the answer):
(Single Best Answer) Question 662: Multi drug resistant salmonella typhi infection is resistant to the following drugs ?
A) quinolones and chloramphenicol
B) chloramphenicol, ampicillin and trimethoprim
C) ciprofloxacin, ampicillin and ceftriaxone
D) nalidixic acid and chloramphenicol
Answer (Select an option above to get the answer):
(Single Best Answer) Question 663: Augmented limb lead aVL has its negative terminal in ?
A) wilson central terminal
B) combined output of right arm and left foot electrodes
C) left arm
D) combined output of right arm, left arm and left food electrodes
Answer (Select an option above to get the answer):
(Single Best Answer) Question 664: Higher risk of sudden cardiac death is predicted by which one of the following features on exercise testing ?
A) lower resting heart rate
B) large increments in heart rate during exercise
C) lower increments in heart rate during first minute of recovery
D) lower decrement in heart rate during first minute of recovery
Answer (Select an option above to get the answer):
(Single Best Answer) Question 665: Beta-blocker therapy after acute myocardial infarction is contraindicated in which of the following conditions ?
Heart failure
Orthostatic hypotension
Peptic ulcer disease
Bronchial asthma

Select the correct answer using the code given below:
A) 1 and 2 only
B) 1, 2 and 4
C) 1 and 4 only
D) 2, 3 and 4
Answer (Select an option above to get the answer):
(Single Best Answer) Question 666: The following congenital heart diseases are associated with cyanosis except ?
A) complete transposition of the great arteries
B) single ventricle with or without pulmonic stenosis
C) hypoplastic left heart
D) atrial septal defect with mitral stenosis
Answer (Select an option above to get the answer):
(Single Best Answer) Question 667: A 34-year old non-diabetic, normotensive patient presents with acute severe retroternsal pain. The ECG shows ST elevation (>= 3 mm) in anterior chest leads. Blood for CPK-MB, Tropin-T and AST are normal. A repeat ECG after 24 hours is normal. What is the likely diagnosis ?
A) Acute pericarditis
B) Prinzmetal s angina
C) Acute anterior myocardial infarction
D) Acute non-myocardial infarction
Answer (Select an option above to get the answer):
(Single Best Answer) Question 668: Which one of the following is characteristic of Opening Snap (on cardiac auscultation) ?
A) Low pitched, early diastolic
B) High pitched, early diastolic
C) High pitched, late diastolic
D) Low pitched, late diastolic
Answer (Select an option above to get the answer):
(Single Best Answer) Question 669: Sudden onset of cough followed by increased dyspnea is typical of ?
A) Pneumothorax
B) Lobar pneumonia
C) Collapse of lung
D) Acute pleurisy
Answer (Select an option above to get the answer):
(Single Best Answer) Question 670: Multi-drug resistance tuberculosis implies resistance to at least ?
A) any two antitubercular drugs
B) Isoniazid and Ethambutol
C) Rifampicin and Ethambutol
D) Isoniazid and Rifampicin
Answer (Select an option above to get the answer):