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HESI LPN · HESI LPN Pharmacology · LPN Peripheral Nervous System Drugs Quizlet

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which of the following agents might mask the hypoglycemic reaction in treated diabetic patients?

A. Beta-adrenergic agonists

B. Alpha-adrenergic antagonists

C. Alpha-adrenergic agonists

D. Beta-adrenergic antagonists

Expert Explanatory Rationale

Correct Answer: Beta-adrenergic antagonists

Question 2 of 5

Which beta blocker is commonly used in the treatment of angina and post-myocardial infarction?

A. Propranol

B. Metoprolol

C. Atenool

D. Nebivool

Expert Explanatory Rationale

Correct Answer: Metoprolol

Question 3 of 5

Tyramine induces release of noradrenaline from adrenergic nerve endings

A. By depolarizing the axonal membrane

B. By mobilizing Ca2+

C. By a nonexocytotic process

D. Only in the presence of MAO inhibitors

Expert Explanatory Rationale

Correct Answer: By a nonexocytotic process

Question 4 of 5

A drug useful in treatment of acute attack of migraine is:

A. Sumatriptan

B. Ergometrine

C. Dihydroergometrine

D. Propranolol

Expert Explanatory Rationale

Correct Answer: Sumatriptan

Question 5 of 5

Some medications for relief of cold/allergy symptoms contain pseudoephedrine, which acts as a decongestant. If a patient who is taking an MAO inhibitor takes pseudoephedrine, what is the likely outcome?

A. Acute bronchospasm/asthma due to ACh release from the adrenal medulla

B. Hypertensive crisis, possible stroke

C. Heart rate and contractile force would drop significantly and quickly

D. The cold symptoms would quickly get worse (increased secretions)

Expert Explanatory Rationale

Correct Answer: Hypertensive crisis, possible stroke

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