Collin College Cardiac Drugs Practice Test 40 Questions

COLLIN COLLEGE

CARDIAC DRUGS

PRACTICE TEST 40

QUESTIONS

Question 1: A patient asks how lisinopril lowers blood pressure. Which explanation is most accurate?

Choices:

1) It inhibits conversion of angiotensin I to angiotensin II 2) It blocks beta1 receptors in the heart 3) It blocks calcium entry into vascular smooth muscle 4) It directly increases sodium excretion in the loop of Henle

Correct Answer: It inhibits conversion of angiotensin I to angiotensin II

Explanation: Lisinopril is an ACE inhibitor. By reducing formation of angiotensin II it decreases vasoconstriction and aldosterone-mediated sodium retention which lowers blood pressure.Page 1

Question 2: A patient taking Zestril (lisinopril) develops a persistent dry cough.Which interpretation is most appropriate?

Choices:

1) The cough proves the patient has pulmonary edema 2) The cough is a recognized ACE inhibitor adverse e�ect 3) The dose is too low to control hypertension 4) The �nding is typical of digoxin toxicity Correct Answer: The cough is a recognized ACE inhibitor adverse e�ect Explanation: A persistent nonproductive cough is a well-known adverse e�ect of ACE inhibitors such as lisinopril and is related to increased bradykinin.

Question 3: Which laboratory value deserves particular attention in a patient

receiving lisinopril?

Choices:

1) Serum calcium 2) Serum uric acid only 3) Serum potassium 4) Serum amylase

Correct Answer: Serum potassium

Explanation: ACE inhibitors can decrease aldosterone activity and cause hyperkalemia.Potassium and renal function should be monitored during therapy.Page 2

Question 4: Which patient statement about lisinopril requires immediate correction?

Choices:

1) I will rise slowly if I feel dizzy 2) I will report swelling of my lips or tongue 3) I will ask before using potassium supplements 4) I can continue this medicine if I become pregnant

Correct Answer: I can continue this medicine if I become pregnant

Explanation: ACE inhibitors carry fetal toxicity risk and should be discontinued as soon as pregnancy is detected unless a clinician determines otherwise for an exceptional circumstance.

Question 5: Losartan lowers blood pressure primarily by which action?

Choices:

1) Blocking angiotensin II receptors 2) Blocking cardiac sodium channels 3) Stimulating beta1 receptors 4) Inhibiting platelet P2Y12 receptors

Correct Answer: Blocking angiotensin II receptors

Explanation: Losartan is an angiotensin II receptor blocker (ARB). It blocks the e�ects of angiotensin II at AT1 receptors and reduces vasoconstriction and aldosterone e�ects.Page 3