Understand Cholinesterase (Serum)

Cholinesterase (Serum)

Here’s what it reflects — and what to do about it.

Longetic pulls together every lab and record you’ve had, follows how Cholinesterase (Serum) changes over time, and explains what’s shifting — so you walk into your next appointment prepared, with reminders for retests along the way.

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52ng/mL
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165mg/dL
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Updated Jul 13, 2026

What is Cholinesterase (Serum)?

An enzyme made by the liver that can reflect liver protein production and certain exposures.

Serum cholinesterase, also called pseudocholinesterase, is an enzyme the liver produces, and its level can reflect how well the liver is making proteins. Lower levels can be associated with reduced liver function, certain inherited variations that affect how some anesthesia medicines are broken down, or exposure to some pesticides. It is a specialized test used for those specific questions, such as before certain anesthetics or in suspected organophosphate exposure, rather than a routine liver check.

What to know about Cholinesterase (Serum)

Understanding Cholinesterase (Serum) means knowing what it reflects, what tends to move it, and the signs that suggest it’s worth a closer look — so you can bring the right questions to your next appointment.

This glossary entry is for informational purposes only and is not a substitute for professional medical advice. Read our Medical Disclaimer.

References

Official source "Biochemistry, Pseudocholinesterase (StatPearls)" StatPearls / NCBI Bookshelf (NLM). www.ncbi.nlm.nih.gov/books/NBK545284.

About our sources

Clinical / professional

Medical societies, specialty colleges, and professional associations whose consensus statements reflect clinical practice standards.

Peer-reviewed research

Original research articles and systematic reviews published in indexed journals and verified through PubMed or DOI.

History of updates

Published · Jul 13, 2026
First published, written and independently fact-checked against the cited sources.

Track your Cholinesterase (Serum) over time with Longetic

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