CVP Patient Safety and Equipment 2

Question 1

What is the role of a centrifugal pump versus a roller pump in bypass?

Accepted Answer

Centrifugal pumps are less likely to cause massive air embolism and generate less hemolysis; roller pumps are simpler and less expensive

Answer

They are identical in function

Answer

Centrifugal pumps are only for pediatric patients

Answer

Roller pumps are safer in all situations

Question 2

What is tubing spallation and why is it a concern?

Accepted Answer

The release of particles from the inner surface of pump tubing into the blood due to roller pump compression

Answer

A type of blood clot

Answer

An oxygenator malfunction

Answer

A monitoring artifact

Question 3

What emergency procedures should be followed if there is a power failure during bypass?

Accepted Answer

Immediately switch to hand cranking the pump while activating backup power systems

Answer

Wait for power to return

Answer

Turn off all equipment

Answer

Start chest compressions on the patient

Question 4

What is the purpose of the cardiotomy suction system?

Accepted Answer

To collect blood from the surgical field for processing and return to the patient

Answer

To suction the patients airways

Answer

To remove fluid from the chest cavity post-surgery

Answer

To drain the venous reservoir

Question 5

What infection control measures are essential for the bypass circuit?

Accepted Answer

Aseptic technique during circuit assembly, sterile components, and antibiotic prophylaxis

Answer

No special precautions are needed

Answer

Only the surgical team needs to observe sterile technique

Answer

Standard hand washing is sufficient

Question 6

What is the standard protocol for weaning a patient off cardiopulmonary bypass?

Accepted Answer

Gradually reduce pump flow while the heart resumes function, monitoring hemodynamics for stability

Answer

Immediately stop the pump

Answer

Reduce flow to zero then restart the heart

Answer

Wait for the surgeon to manually restart the heart