CCP Perfusion Equipment & Technology Operation 3

Question 1

Centrifugal blood pumps generate flow by:

Accepted Answer

Creating a rotating magnetic field that spins an impeller or cone

Answer

Centrifugal pumps use a rotating impeller or cone driven magnetically to impart kinetic energy to blood, generating non-occlusive constrained vortex flow.

Question 2

A key safety advantage of centrifugal pumps over roller pumps during CPB is:

Accepted Answer

They cannot generate excessive negative or positive pressures that could cause tubing rupture or cavitation

Answer

Centrifugal pumps are non-occlusive and will stall rather than generate dangerously high pressures or extreme negative pressures that could rupture tubing or cause cavitation.

Question 3

Antegrade warm blood cardioplegia is delivered via the:

Accepted Answer

Aortic root or direct coronary ostia

Answer

Antegrade cardioplegia is delivered through the aortic root or directly into coronary ostia, following the normal direction of coronary blood flow.

Question 4

Modified ultrafiltration (MUF) performed after CPB primarily serves to:

Accepted Answer

Hemoconcentrate the patient and reduce the systemic inflammatory response

Answer

MUF removes excess fluid and inflammatory mediators accumulated during bypass, improving hematocrit and attenuating the systemic inflammatory response post-CPB.

Question 5

During retrograde cardioplegia delivery, the cannula is placed in the:

Accepted Answer

Coronary sinus

Answer

Retrograde cardioplegia is delivered via a balloon-tipped catheter placed in the coronary sinus, allowing the solution to flow against the normal direction of coronary venous drainage.

(CCP) Certified Clinical Perfusionist Practice Test

(CCP) Certified Clinical Perfusionist Practice Test

CCP Perfusion Equipment & Technology Operation 3