MS Pharmacology & Drug Administration 3

Question 1

Which medication class is commonly prescribed to reduce stomach acid production by blocking the proton pump?

Accepted Answer

Proton pump inhibitors (PPIs)

Answer

Proton pump inhibitors like omeprazole block the H+/K+ ATPase enzyme, reducing gastric acid secretion.

Question 2

A physician writes 'ondansetron 4 mg IV PRN nausea q6h.' What does PRN mean?

Accepted Answer

As needed

Answer

PRN is from Latin 'pro re nata,' meaning 'as needed' — the drug is given only when the condition arises.

Question 3

Which suffix most commonly identifies a medication as a beta-blocker?

Accepted Answer

-olol

Answer

Beta-blockers typically end in '-olol,' as seen in metoprolol, atenolol, and carvedilol.

Question 4

In a medication order, what does the abbreviation 'SL' indicate about the route of administration?

Accepted Answer

Sublingual

Answer

SL stands for sublingual, meaning the medication is placed under the tongue for rapid mucosal absorption.

Question 5

Which controlled substance schedule has the highest potential for abuse with no accepted medical use in the US?

Accepted Answer

Schedule I

Answer

Schedule I substances (e.g., heroin, LSD) have no accepted medical use and the highest abuse potential.

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