Pharmacology & Medication Administration Flashcards
7 cards from real LVN 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 & Medication Administration flashcards as text
A patient is prescribed warfarin. Which food should the LVN instruct the patient to keep consistent in their diet?
Answer: Vitamin K-rich foods like leafy greens
Vitamin K antagonizes warfarin's anticoagulant effect, so patients should keep intake consistent rather than eliminating it entirely.
Which statement best describes the term 'half-life' of a drug?
Answer: Time for the body to eliminate half of the drug from plasma
Half-life is the time required for plasma concentration of a drug to decrease by 50%, which guides dosing intervals.
An LVN is preparing to administer an IM injection to an adult. What is the maximum volume that should be administered in the deltoid muscle?
Answer: 1 mL
The deltoid muscle is small and can only safely accommodate up to 1 mL of medication to prevent tissue damage.
A patient receiving heparin develops signs of bleeding. Which medication should be available as the antidote?
Answer: Protamine sulfate
Protamine sulfate binds to heparin and neutralizes its anticoagulant effect, making it the specific antidote for heparin toxicity.
Which route of administration provides the fastest drug absorption?
Answer: Intravenous
Intravenous administration delivers medication directly into the bloodstream, bypassing absorption and providing the fastest onset.
A patient is ordered acetaminophen 650 mg PO q6h PRN for pain. Available are 325 mg tablets. How many tablets should the LVN administer per dose?
Answer: 2 tablets
650 mg ÷ 325 mg/tablet = 2 tablets per dose.
Which class of medication requires the LVN to monitor the patient's blood pressure before administration?
Answer: Antihypertensives
Antihypertensive medications lower blood pressure, so the LVN must assess baseline BP to prevent dangerous hypotension.