CABG SURGEY

What should the activated clotting time be prior to initiation o cardiopulmonary bypass (CPB)

• < 150 seconds

• > 200 seconds but < 350 seconds

• > 350 seconds but < 450 seconds

• > 400 seconds

What medicine is routinely given to reverse the effect of heparin?

• Fresh frozen plasma

• Protamine

• Antithrombin III

• Vitamin K

The only clinically proven method to reduce the risk of perioperative myocardial infarction (MI) and associated death is...

• Perioperative β-blocker therapy

• Perioperative clonidine therapy

• Both A and B

• An ultrasound

What dose of Protamine is used to reverse the effect of heparin?

• 4 mg/100 units of heparin.

• 3 mg/100 units of heparin.

• 2 mg/100 units of heparin.

• 1 mg/100 units of heparin.

Coronary perfusion pressure is...

• Arterial diastolic pressure minus left-ventricular end diastolic pressure

• Arterial diastolic pressure minus left-ventricular end systolic pressure

• Arterial systolic pressure minus left-ventricular end diastolic pressure

• Arterial systolic pressure minus left-ventricular end systolic pressure

Which two leads are monitored simultaneously in perioperative period?

• Lead V5 followed by V4

• Lead ll followed by V6

• Leads II and V5

• Leads V1 and V6

Which of the following has no coronary vasodilating potential?

• Nitrates

• Verapamil

• Dihydropyridines

• β-Blockers

Which of the following inhalational agents causes the least coronary vasodilation?

• Halothane

• Isoflurane

• Desflurane

• Sevoflurane

All of the following monitoring are used in CABG except

• BIS

• CVP

• TEE

• SSEP

Which of the following monitors is started post-induction in CABG?

• Temperature

• CVP

• A-line

• MEP