ATI RN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
Which is not an end product of the breakdown of hemoglobin?
Correct Answer: C
Rationale: Hemoglobin yields amino acids (A), bilirubin (B), and iron (D); oxygen (C) is released, not a product.
Question 2 of 5
Insoluble protein that forms fine threads in the blood needed to make a clot
Correct Answer: A
Rationale: Fibrin (A) forms the clot mesh.
Question 3 of 5
Which of the following is not an example of hemostasis?
Correct Answer: B
Rationale: Temperature regulation (B) is unrelated to hemostasis (stopping blood loss).
Question 4 of 5
A hemopoietic growth factor:
Correct Answer: C
Rationale: Growth factors (C) like EPO stimulate blood cell precursors.
Question 5 of 5
In the renin-angiotensin-aldosterone mechanism,
Correct Answer: C
Rationale: Aldosterone (C) increases sodium reabsorption, raising BP. Renin is from kidneys (not liver, A), aldosterone reduces urine output (not B), so only C is true.