ATI LPN
100 Questions on the Cardiovascular System PDF Questions
Question 1 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 2 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 3 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.
Question 4 of 5
The human heart beats faster when you exercise.
Correct Answer: A
Rationale: Exercise increases heart rate to meet the body's higher demand for oxygen and nutrients.
Question 5 of 5
A 27 yo male patient presents with a female body habitus. Testicles are small. Absent secondary sex characteristics. Karyotype = 47 XXY. Which of the following is most likely to be seen with this clinical presentation?
Correct Answer: A
Rationale: This patient has Klinefelter syndrome (47,XXY), characterized by hypogonadism due to testicular failure. This leads to elevated LH and FSH (hypergonadotropic hypogonadism) as the pituitary attempts to stimulate the underperforming testes, while testosterone is low. Prolactin and TSH are not typically affected.