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.
If these guidelines for adults and children are followed, acetaminophen is safe and carries essentially no risk of liver injury. On the other hand, a single dose of seven to 10 grams of acetaminophen (14 to 20 extra-strength tablets) can cause liver injury in the average healthy adult.Note that this amount is about twice the recommended maximum dose for a 24-hour period.In children, a single dose of 140 mg/kg (body weight) of acetaminophen can result in liver injury.ote that this amount is about twice the recommended maximum dose for a 24-hour period. In children, a single dose of 140 mg/kg (body weight) of acetaminophen can result in liver injury.