ATI RN
Cardiovascular System Quiz Questions Questions
Question 1 of 5
A person with only antibody B in his or her plasma would have which blood type?
Correct Answer: A
Rationale: Type A (A) has anti-B antibodies, no B antigen.
Question 2 of 5
Substance that combines with calcium to convert fibrinogen to fibrin
Correct Answer: B
Rationale: Thrombin (B) with calcium converts fibrinogen to fibrin.
Question 3 of 5
The substance that stimulates formation of platelets is:
Correct Answer: A
Rationale: Thrombopoietin (A) drives platelet production.
Question 4 of 5
An ABO mismatched blood transfusion can cause acute renal failure because the
Correct Answer: D
Rationale: Mismatched transfusion lyses RBCs, releasing hemoglobin that clogs kidneys (D).
Question 5 of 5
Venoconstriction increases which of the following?
Correct Answer: D
Rationale: Venoconstriction narrows veins, increasing pressure (A), flow (B), and venous return to the heart (C), thus all (D), aiding circulation.