CRNI Blood Component Transfusion 2

Question 1

What is the maximum infusion time allowed for one unit of packed red blood cells?

Accepted Answer

4 hours

Answer

Packed red blood cells must be infused within 4 hours of removal from controlled storage to minimize bacterial proliferation risk.

Question 2

Which type of blood component requires irradiation before transfusion to immunocompromised patients?

Accepted Answer

Granulocyte concentrates

Answer

Granulocyte concentrates and other cellular blood products require irradiation to prevent transfusion-associated graft-versus-host disease in immunocompromised patients.

Question 3

During a platelet transfusion, the patient develops rigors and a temperature increase of 1.5 degrees C. What is the MOST likely cause?

Accepted Answer

Febrile non-hemolytic transfusion reaction

Answer

Febrile non-hemolytic transfusion reactions are the most common reaction with platelet transfusions, characterized by fever and rigors without hemolysis.

Question 4

What is the correct blood sample labeling requirement for pre-transfusion testing?

Accepted Answer

Labels with patient name, MRN, date, time, and collector's initials applied at the bedside

Answer

Pre-transfusion specimens must be labeled at the bedside with complete patient identifiers, date, time, and phlebotomist identification to prevent specimen misidentification.

Question 5

Which IV solution is compatible for co-infusion with blood components?

Accepted Answer

0.9% Normal saline

Answer

Only 0.9% normal saline is compatible with blood component administration. Other solutions can cause hemolysis or clotting.

CRNI Exam Practice Test

CRNI Exam Practice Test

CRNI Blood Component Transfusion 2