Which of the following patients is most at risk for liver damage after taking acetaminophen regularly for arthritis pain?
Patient with a history of alcohol abuse and hepatitis C
Patient with COPD and a 20 pack-year history of smoking
Patient with type 2 diabetes and end-stage renal disease
Patient with prostate enlargement and urinary frequency
The Correct Answer is A
Choice A reason: Alcohol and hepatitis C impair liver function; acetaminophen’s metabolite NAPQI accumulates, causing hepatotoxicity in an already compromised organ.
Choice B reason: COPD and smoking affect lungs, not liver; acetaminophen metabolism is minimally impacted, posing lower hepatic risk compared to liver disease states.
Choice C reason: Renal disease affects drug excretion, not liver metabolism; acetaminophen’s hepatic load is unchanged, making liver damage less likely here.
Choice D reason: Prostate issues involve urinary tract; liver metabolism of acetaminophen remains intact, with no heightened risk of hepatotoxicity from this condition.
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Related Questions
Correct Answer is C
Explanation
Choice A reason: Osteoarthritis limits mobility; it doesn’t affect kidney function directly, so nephrotoxic drug clearance remains unchanged, not warranting a dose reduction.
Choice B reason: Diet impacts metabolism slightly; low protein may spare kidneys, but it doesn’t indicate impaired clearance requiring adjustment of nephrotoxic medication.
Choice C reason: Diabetic kidney disease with hypertension impairs filtration; reduced glomerular rate necessitates lower nephrotoxic doses to prevent further renal damage.
Choice D reason: Smoking affects lungs primarily; while it may indirectly harm kidneys, it’s less definitive than diabetic nephropathy for needing a reduced dose.
Correct Answer is D
Explanation
Choice A reason: Positioning the tablet next to the cheek alters absorption and delays onset. Sublingual placement ensures rapid effect.
Choice B reason: Swallowing bypasses sublingual absorption, reducing efficacy. The route is critical for desired therapeutic outcomes.
Choice C reason: Crushing and dissolving disrupts integrity, compromising rapid sublingual absorption. Proper administration maintains efficacy.
Choice D reason: Sublingual placement allows rapid dissolution and absorption via mucous membranes, ensuring swift therapeutic action.
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