B:-Mitral
C:-Tricuspid
D:-Pulmonary
Correct Answer:- Option-B
Question59:-All are true of left superior venacave except
A:-Most commonly opens into the coronary sinus
B:-Runs anterior to the heart
C:-May be cannulated
D:-Does not cause volume overload of the heart
Correct Answer:- Option-B
Question60:-Aortic cross clamping is done early in
nificant aortic regurgitation
B:-Truncus arteriosus
C:-Aortopulmonary window
D:-All of the above
Correct Answer:- Option-D
Question61:-The oxygenator initially used by Gibbon was a
A:-Bubble oxygenator
B:-Film oxygenator
C:-True membrane oxygenator
D:-Microfibre oxygenator
Correct Answer:- Option-B
Question62:-Heparin was discovered by
A:-Bigelow
B:-De Bakey
C:-Lillehei
D:-McLean
Correct Answer:- Option-D
Question63:-All the following changes happen on cardiopulmonary bypass except
A:-Increased ACTH in nopulsatile CPB
B:-Growth hormone increases
C:-Elevation of stress hormones
D:-Hyperglycemia
Correct Answer:- Option-A
Question64:-Tissue oxygen delivery is easily measured by
A:-Mixed venous oxygen saturation
B:-2, 3 diphosphoglycerate
C:-Oxygen dissociation curve
D:-Catecholamine assay
Correct Answer:- Option-A
Question65:-Heparin is safe as an anticoagulant for extracorporeal circulation beacause of
A:-Short duration for maximal action
B:-Long half life
C:-Absence of monitoring systems
D:-Platelet aggregation
Correct Answer:- Option-A
Question66:-All are true of magnesium except
A:-lt is a membrane stabiliser
B:-Stimulates catecholamine release
C:-Has important role in aerobic metabolism
D:-Helps maintain cellular integrity
Correct Answer:- Option-B
Question67:-All are phosphodiesterase type 3 inhibitors except
A:-Amrinone
B:-Milrinone
C:-Enoximone
D:-Dopexamine
Correct Answer:- Option-D
Question68:-Which of the following increases cerebral emboli 7