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HESI LPN · HESI LPN Pharmacology · HESI Pharmacology of Drugs Acting on Cardiovascular System

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

The health care provider is planning to discontinue a patientÃ¢â‚¬â„¢s beta blocker. Which instruction will the nurse give the patient regarding the beta blocker?

A. The beta blocker should be abruptly stopped when another cardiac drug is prescribed.

B. The beta blocker should not be abruptly stopped; the dose should be tapered down.

C. The beta blocker dose should be maintained while taking another antianginal drug.

D. Half the beta blocker dose should be taken for the next several weeks.

Expert Explanatory Rationale

Correct Answer: The beta blocker should not be abruptly stopped; the dose should be tapered down.

Question 2 of 5

The client is given low molecular weight heparin at home. In teaching the client, the nurse explains that the drug works by doing what?

A. Acts as an anti-platelet agent.

B. Inactivates clotting factor Xa

C. Inactivates thrombin

D. Increases fibrinolysis

Expert Explanatory Rationale

Correct Answer: Inactivates clotting factor Xa

Question 3 of 5

A 67-year-old man with insulin-dependent diabetes mellitus, hypertension, and congestive heart failure develops exacerbation of heart failure symptoms. Pathophysiology of this condition that relates to potential roles of drug therapy include which of the following?

A. Peripheral nervous system activity

B. Loss of cardiac myocytes

C. Muscle hyperplasia

D. Muscle inflammatory scar formation

Expert Explanatory Rationale

Correct Answer: Loss of cardiac myocytes

Question 4 of 5

Vitamin ÃÅ¡ enhances the anticoagulant property of coumarins. This statement is:

A. TRUE

B. FALSE

C. All

D. None

Expert Explanatory Rationale

Correct Answer: FALSE

Question 5 of 5

Tachyphylaxis is:

A. A drug interaction between two similar types of drugs

B. Very rapidly developing tolerance

C. A decrease in responsiveness to a drug, taking days or weeks to develop

D. None of the above

Expert Explanatory Rationale

Correct Answer: Very rapidly developing tolerance

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