ATI RN
100 Questions on the Cardiovascular System Questions
Question 1 of 5
Cells from which platelets are produced
Correct Answer: B
Rationale: Megakaryocytes (B) fragment into platelets.
Question 2 of 5
Which of the following is true in reference to a blood transfusion?
Correct Answer: B
Rationale: Transfusions (B) treat anemia; mismatched types cause agglutination (C).
Question 3 of 5
The endothelium is found in the
Correct Answer: A
Rationale: The endothelium lines the tunica intima (A), the innermost layer of blood vessels, facing the lumen (D). Tunica media (B) is smooth muscle, tunica externa (C) is connective tissue.
Question 4 of 5
A form of circulatory shock common in young children with severe diarrhea or vomiting is
Correct Answer: A
Rationale: Hypovolemic shock (A) results from fluid loss (e.g., diarrhea), reducing blood volume. Anaphylactic (B) is allergic, obstructive (C) is blockage, hemorrhagic (D) is bleeding.
Question 5 of 5
In which septum is it normal to find openings in the adult?
Correct Answer: D
Rationale: No septa normally have openings in adults (D). Fetal interatrial septum has the foramen ovale, but it closes at birth.