ATI RN
Cardiovascular System Practice Questions Questions
Question 1 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 2 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 3 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.
Question 4 of 5
The nurse is caring for a client on a heparin infusion when the client expresses concern over a progressively painful headache. Which of the following is the priority nursing action?
Correct Answer: C
Rationale: Notifying the physician (C) is the priority for a headache (possible heparin hypersensitivity or bleed). Stopping heparin (A) or giving protamine (B) awaits orders, morphine (D) is inappropriate.
Question 5 of 5
Arteries are blood vessels that:
Correct Answer: C
Rationale: Arteries are defined as vessels that carry blood away from the heart, regardless of oxygenation status (e.g., pulmonary artery carries deoxygenated blood). Veins travel to the heart. A and B are not universally true for all arteries.