ATI RN
NCLEX Practice Questions Cardiovascular System Questions
Question 1 of 5
What blood type is a person if their plasma contains only anti-A agglutinin?
Correct Answer: B
Rationale: Type B (B) has anti-A antibodies, no A antigen. Type A (A) has anti-B, O (C) has both, AB (D) has neither.
Question 2 of 5
Which of the following types of white blood cells is thought to play a role in the prevention of clotting?
Correct Answer: C
Rationale: Basophils (C) release heparin, an anticoagulant.
Question 3 of 5
The function of blood is to:
Correct Answer: D
Rationale: Blood performs all these functions (D): nutrient transport, waste removal, and thermoregulation.
Question 4 of 5
Granulocytes that phagocytize microorganisms for cellular defense; most numerous leukocyte
Correct Answer: A
Rationale: Neutrophils (A) are most numerous (60-70%) and phagocytize bacteria.
Question 5 of 5
Substance needed by the liver to make prothrombin
Correct Answer: A
Rationale: Vitamin K (A) is essential for liver synthesis of prothrombin.