Acetaminophen : labtest

Why Get Tested?
To determine if an overdose has occurred; to determine risk of liver damage; to help determine if treatment with an antidote is required
When to Get Tested?
When it is suspected that a person has ingested an overdose of acetaminophen or has signs and symptoms of toxicity, such as nausea, vomiting, and abdominal pain; when following a patient, every 4 to 6 hours after an overdose of the drug is ingested
Sample Required?
A blood sample drawn from a vein in the arm

How is it used?
The test for acetaminophen is used to measure the level of drug in the blood in order to establish a diagnosis of overdosage, to assess the risk of liver damage, and to help decide on the need for treatment. Prompt diagnosis and treatment are important for a positive outcome.
Since high levels of acetaminophen can be toxic to the liver, tests such as AST and ALT may be used to detect liver damage. A PT may be used to detect impaired liver function.

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