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Also known as: Acetaminophen
Formal name: Paracetamol

At a Glance

Why Get Tested?

In order to assess risk of liver damage after over-dosage and to decide on the need for protective, antidotal therapy

When to Get Tested?

Four hours after a single overdose, or as soon as possible after that, and immediately if more than one overdose has been taken within the last 1 or 2 days. It is best to treat an overdose within 8 hours whenever possible.

Sample Required?

A blood sample drawn from a vein usually in an arm

The Test Sample

What is being tested?

The plasma paracetamol concentration is being measured

How is the sample collected for testing?

Normally from a vein in the arm by use of a needle and syringe

The Test

Common Questions

Ask a Laboratory Scientist

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NOTE: This article is based on research that utilizes the sources cited here as well as the collective experience of the Lab Tests Online Editorial Review Board. This article is periodically reviewed by the Editorial Board and may be updated as a result of the review. Any new sources cited will be added to the list and distinguished from the original sources used.