ATI RN
Cardiovascular System Questions and Answers Questions
Question 1 of 5
A person with an antigen on the red blood cell and a different antibody in the plasma would have which blood type?
Correct Answer: A
Rationale: Type A (A) has A antigen and anti-B antibody.
Question 2 of 5
The nucleated stem cell from which red blood cells develop
Correct Answer: C
Rationale: Hemocytoblasts (C) are pluripotent stem cells for RBCs.
Question 3 of 5
Which does NOT help to control hemostasis?
Correct Answer: D
Rationale: Prothrombinase production (D) drives clotting, not control.
Question 4 of 5
A healthy elastic artery
Correct Answer: A
Rationale: Elastic arteries (e.g., aorta) are compliant (A), stretching to accommodate systolic pressure. They don’t reduce flow (B), aren’t resistance vessels (C, muscular arteries), and have thick, regular walls (not D).
Question 5 of 5
Which of the following statements is true?
Correct Answer: B
Rationale: One umbilical vein (B) carries oxygenated blood from placenta to fetus; two arteries carry deoxygenated blood to placenta (not lungs, C).