FREE CRNI Blood Transfusion Questions and Answers

Question 1

When someone receives donated blood, it is called a blood transfusion. Why are transfusions administered?

Accepted Answer

All of the above

Answer

Blood transfusions are administered for a variety of critical medical reasons. They can increase the overall blood volume in cases of significant blood loss, improve the blood's oxygen-carrying capacity by providing red blood cells, and reduce the risk of bleeding by supplying essential clotting factors or platelets. Therefore, all the listed reasons are valid indications for a blood transfusion.

Question 2

What blood components can be transfused?

Accepted Answer

All of the above

Answer

Blood can be separated into its various components, allowing patients to receive only the specific part they need. Red blood cells are transfused for anemia, platelets for clotting disorders, and whole blood is used in cases of massive blood loss when all components are required. Plasma, another major component, is also commonly transfused, making 'All of the above' the correct answer.

Question 3

What weight must you be in order to donate blood?

Accepted Answer

110 pounds

Answer

To ensure the safety of both the donor and the recipient, blood donation centers have specific eligibility criteria. A minimum weight of 110 pounds (approximately 50 kg) is a standard requirement for whole blood donation. This threshold helps ensure that the donor has sufficient blood volume to safely donate a unit without experiencing adverse effects like dizziness or fainting.

Question 4

How frequently can a blood donor donate?

Accepted Answer

Every 2 months

Answer

The body needs time to replenish the red blood cells and iron lost during a whole blood donation. A standard interval of 56 days (8 weeks or approximately 2 months) between whole blood donations is recommended. This allows the donor's body to fully recover and maintain healthy iron levels, preventing iron deficiency anemia.

Question 5

How much blood typically is given at once?

Accepted Answer

1 pint

Answer

A standard whole blood donation typically collects about 1 pint (approximately 450-500 milliliters) of blood. This volume is carefully chosen to be safe for most healthy adults to donate without significant physiological impact. This single unit can then be transfused as whole blood or separated into components like red blood cells, plasma, and platelets.

CRNI Exam Practice Test

CRNI Exam Practice Test

FREE CRNI Blood Transfusion Questions and Answers