Pharmacology Fundamentals Flashcards
7 cards from real TRIVIUM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Pharmacology Fundamentals flashcards as text
Which type of drug interaction occurs when one drug increases the effect of another beyond what either would produce alone?
Answer: Potentiation
Potentiation occurs when one drug enhances the effect of another drug that has little or no effect by itself.
What does 'PRN' mean on a medication order?
Answer: As needed
PRN comes from the Latin 'pro re nata,' meaning 'as needed' or 'as the situation demands.'
A patient develops tolerance to a drug. This means:
Answer: Increased doses are needed to achieve the same effect
Tolerance occurs when the body adapts to a drug over time, requiring higher doses to produce the original therapeutic effect.
Which administration route bypasses the first-pass effect?
Answer: Intravenous
Intravenous administration delivers drugs directly to systemic circulation, completely bypassing hepatic first-pass metabolism.
What is a 'loading dose'?
Answer: A higher initial dose given to quickly reach therapeutic levels
A loading dose is a larger-than-normal initial dose used to rapidly achieve a therapeutic plasma concentration.
Which suffix typically indicates a drug belongs to the beta-blocker class?
Answer: -olol
Beta-blockers commonly end in '-olol,' as seen in metoprolol, atenolol, and propranolol.
What is the meaning of 'pharmacokinetics'?
Answer: How the body absorbs, distributes, metabolizes, and excretes a drug
Pharmacokinetics describes what the body does to a drug: absorption, distribution, metabolism, and excretion (ADME).