ATI RN
Cardiovascular System Questions and Answers Questions
Question 1 of 5
Which of the following plasma proteins plays a role in blood clotting?
Correct Answer: C
Rationale: Fibrinogen (C) is key in clotting, forming fibrin. Albumin (A) and globulins (B) have other roles; prostaglandins (D) are signaling molecules.
Question 2 of 5
A condition in which inadequate intake of vitamin B12 or folic acid causes production of large abnormal red blood cells is called
Correct Answer: C
Rationale: Megaloblastic anemia (C) results from B12/folate deficiency, producing large, defective RBCs.
Question 3 of 5
Which of the following is not a leukocyte?
Correct Answer: B
Rationale: Reticulocytes (B) are immature RBCs, not leukocytes (WBCs).
Question 4 of 5
A reduction in the number of circulating RBCs would cause:
Correct Answer: B
Rationale: Anemia (B) is low RBCs/hemoglobin.
Question 5 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.