ATI LPN
100 Questions on the Cardiovascular System PDF Questions
Question 1 of 5
Hypertension can decrease cardiac output by directly causing an increase in___
Correct Answer: A
Rationale: Hypertension increases afterload, making it harder for the ventricles to eject blood, which raises end systolic volume and reduces stroke volume.
Question 2 of 5
When teaching how lisinopril helps lower the patient's blood pressure, which mechanism of action would the nurse explain?
Correct Answer: C
Rationale: Lisinopril is an angiotensin-converting enzyme inhibitor that inhibits the conversion of angiotensin I to angiotensin II, which reduces angiotensin II-mediated vasoconstriction and sodium and water retention.
Question 3 of 5
The most important purpose of the valves in the heart is to
Correct Answer: B
Rationale: Heart valves ensure unidirectional blood flow, preventing backflow and maintaining circulation efficiency.
Question 4 of 5
What lab result requires immediate intervention in a patient with heart failure prescribed furosemide?
Correct Answer: B
Rationale: Furosemide can cause significant potassium loss, and levels below 3.5 mEq/L increase the risk of cardiac dysrhythmias.
Question 5 of 5
What finding in a patient on amiodarone requires immediate intervention?
Correct Answer: B
Rationale: Pulmonary toxicity is a severe adverse effect of amiodarone, indicated by respiratory symptoms requiring urgent evaluation.