ATI RN
Cardiovascular System Practice Questions Questions
Question 1 of 5
Another name for red bone marrow
Correct Answer: B
Rationale: Red bone marrow is myeloid tissue (B), site of hematopoiesis.
Question 2 of 5
In a blood pressure measurement of 110/70, the number 70 is the
Correct Answer: B
Rationale: In 110/70 mmHg, 70 is diastolic pressure (B), measured during ventricular relaxation. Systolic (A) is 110, pulse pressure (C) is 110-70=40, mean arterial pressure (D) is ~83.
Question 3 of 5
Blood islands are
Correct Answer: D
Rationale: Blood islands (D) in the yolk sac form early vessels and blood cells in the embryo.
Question 4 of 5
The cardiac cycle consists of a distinct relaxation and contraction phase. Which term is typically used to refer ventricular contraction while no blood is being ejected?
Correct Answer: D
Rationale: Isovolumic contraction (D) is early ventricular systole when valves are closed, and no blood is ejected.
Question 5 of 5
Which of the following is the priority for the nurse to assess before administering digoxin (Lanoxin)?
Correct Answer: A
Rationale: Auscultating the apical pulse (A) for 1 minute is the priority to detect bradycardia (<60 bpm), a sign of digoxin toxicity. Radial pulse (B) is less accurate, renal function (C) and potassium (D) are monitored but not the priority.