ATI RN
Cardiovascular System Practice Questions Questions
Question 1 of 5
Which of the following hormones stimulates the development of megakaryoblasts?
Correct Answer: B
Rationale: Thrombopoietin (B) from liver/kidneys stimulates megakaryoblasts to form platelets. EPO (A) affects RBCs, NO (C) dilates vessels, hGH (D) promotes growth.
Question 2 of 5
In the formation of blood cells, the megakaryocyte ultimately forms:
Correct Answer: B
Rationale: Megakaryocytes (B) fragment into platelets.
Question 3 of 5
The element in hemoglobin that allows oxygen to be transported is:
Correct Answer: C
Rationale: Iron (C) in heme binds oxygen.
Question 4 of 5
A person with no antigens on the red blood cell would have which blood type?
Correct Answer: D
Rationale: Type O (D) lacks A/B antigens.
Question 5 of 5
Called the universal recipient; has both A and B antigens and no antibodies
Correct Answer: C
Rationale: Type AB (C) has A/B antigens, no antibodies, accepting all types.