slide 2 of 12. Skin The skin is the largest organ in the human body. Its main job is to maintain the body's temperature, which means that sweat is created to cool the body, and goosebumps or raised hair occur to trap heat in the body. Along with sweat glands, the skin contains oil glands.
...However, if I am wrong about that, the answer is that acetaminophen (and its metabolites) are identifiable for up to 48 hours after you took the pill. Less if you took tiny doses, but up to standard clinical doses (<8g), it's 48ish hours.
A 72-year-old woman came into the emergency department. with acetaminophen overdose, revealing an acetaminophen. level of 180 mcg/mL four hours after taking the last dose. Her. physician ordered acetylcysteine intravenously to prevent liver. toxicity and worked with pharmacy to double-check his weight-.