Acetaminophen (paracetamol) analysis is a laboratory test used to measure acetaminophen levels in blood serum using high-performance liquid chromatography (HPLC). This analysis is important in cases of acetaminophen poisoning or suspected overdose. It helps physicians assess the drug level in the body and determine whether therapeutic intervention is needed, such as using N-acetylcysteine as an antidote. It is recommended to perform this analysis promptly after potential exposure to ensure accurate results and provide appropriate patient care.