Lab reference

Ammonia

Liver

For education. Check every result.

Anatium is a study resource, not medical advice. Nothing here is a diagnosis, a prescription or a substitute for a clinician who has seen the patient. Check every number against a current local protocol before it touches anyone, and never act on a result you cannot reproduce yourself.

Reference range

Range15 to 45 µmol/L

About

A nitrogen waste product cleared by the liver. Used in encephalopathy, though the level correlates poorly with how confused the patient is.

When it is low

Usually not clinically significant

When it is high

Hepatic encephalopathy, liver failure, urea cycle disorders, GI bleed

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