Correct Answer:- Option-A
Question29:-The commonest cause of stroke on cardiopulmony bypass is
A:-Microembolism
B:-Air embolism
C:-Low perfusion pressure
D:-Events during cannulation and clamping
Correct Answer:- Option-D
Question30:-In atherosclerotic aorta the best cannulation site is
A:-Ascending aorta
B:-Right innominate artery
C:-Right subclavian artery
D:-Femoral artery
Correct Answer:- Option-C
Question3’ istal ischemia during peripheral cannulation can be prevented by
A:-Using a large cannula
B:-Cannulating via a side arm graft
C:-Avoiding a separate distal perfusion cannula
D:-Looping and snaring the artery that is cannulated
Correct Answer:- Option-B
Question32:-Mitral valve surgery commonly uses

B:-Atriocaval cannulas
C:-Single atrial cannula
D:-Circulatory arrest
Correct Answer:- Option-A
Question33:-All are true regarding Activated Clotting Time (ACT) except
A:-In offpump CABG ACT of 250 sec may be satisfactory
B:-Correlates better with heparin concentration than high dose thrombin time
C:-Usually measured 3 to 5 minutes after heparin administration
D:-Normally should be above 480 seconds on CPB
Correct Answer:- Option-B
Question34:-Systemic flow rates at normothermia are usually
A:-1.5 Itr/min/ m~(2)"
B:-1.2 ltr/min/* m~(2)"
C:-2.4 ltr/min/* m~(2)
D:-2.0 ltr/min/ m~(2)*
Correct Answer:- Option-D
Question35:-All are true of retrograde autologous priming except
A:-Reduces haemodilutional effect of priming solution
B:-An alpha agonist is used
C:-Drainage of prime is from venous line
D:-Most useful in large and over weight patients
Correct Answer:- Option-D
Question36:-Adequate tissue oxygen delivery is assessed by all except
A:-Residual nitrogen saturation
B:-Venous oxygen saturation
C:-Blood lactate levels
D:-Inline carbon dioxide monitoring
Correct Answer:- Option-A
Question37:-All the following are used to combat low systemic vascular resisance except
A:-Terlipressin
B:-Phenylephrine
C:-Methylene blue
D:-Dobutamine
Correct Answer:- Option-D
Question38:-Heart distension on bypass can produce all except
A:-Pulmonary barotrauma
B:-Ventricular cooling
C:-Myocardial fibre stretching