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HESI LPN · HESI LPN Pharmacology · HESI Drug and Dosage for ET Tube Cardiovascular Pharmacological Agents

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Showing all 5 practice questions with expert explanatory rationales.

Question 1 of 5

Which depolarizing agent has the extremely brief duration of action?

A. Mivacurium

B. Rapacuronium

C. Rocuronium

D. Succinylcholine

Expert Explanatory Rationale

Correct Answer: Succinylcholine

Question 2 of 5

A 58-year-old African American man with hypertension managed with nifedipine presents to his primary care physician for follow-up. His blood pressure is 136/84 mm Hg. Physical examination of the heart, lungs, and abdomen are within normal limits. The most likely effects of this medication to cause blood pressure reduction likely involve

A. Arterial vasoconstriction

B. Decrease in smooth muscle vascular tone

C. Increase in myocardial oxygen consumption

D. Pronounced improvement in afterload

Expert Explanatory Rationale

Correct Answer: Decrease in smooth muscle vascular tone

Question 3 of 5

A patient receiving a class I antiarrhythmic agent on a chronic basis complains of fatigue, low-grade fever, and joint pain suggestive of systemic lupus erythematosus (SLE). The patient is most likely receiving

A. Lidocaine

B. Procainamide

C. Quinidine

D. Flecainide

Expert Explanatory Rationale

Correct Answer: Procainamide

Question 4 of 5

The Ã¢â‚¬Ëœgateway hypothesisÃ¢â‚¬â„¢ is used to explain why:

A. some drugs are highly addictive (such as nicotine) and others are minimally addictive (such as LSD)

B. the correlation, but not the causal relationship, between early cannabis use and genetic predisposition to schizophrenia

C. people who are addicted to heroin are likely to have previously used cannabis

D. people who take this class have a higher chance of becoming involved in the formulation of public drug policies

Expert Explanatory Rationale

Correct Answer: people who are addicted to heroin are likely to have previously used cannabis

Question 5 of 5

Characteristics of methoxamine include all of the following EXCEPT:

A. It is a direct-acting alfa1-receptor agonist

B. It increases heart rate, contractility and cardiac output

C. It causes reflex bradycardia

D. It increases total peripheral resistance

Expert Explanatory Rationale

Correct Answer: It increases heart rate, contractility and cardiac output

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