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Cholesterol in Chylomicrons, Serum/Plasma — Mass Concentration

Published: August 9, 2026Updated: August 16, 2026

A blood test that measures cholesterol carried in chylomicrons, which are triglyceride-rich particles produced after meals.

Quick summary

["This test helps assess the amount of cholesterol in chylomicrons and is interpreted alongside triglycerides and the rest of the lipid profile."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
34467-1
Short code
Cholest in Chylo SerPl-mCnc
Synonyms
Cholest in Chylo SerPl-mCnc
Category
lipid
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

Chylomicron cholesterol is the amount of cholesterol contained in chylomicrons, a type of particle that transports dietary fats from the intestine. The test measures this fraction in blood.

Why might I need this test?

This specialized test may be ordered in selected people with high triglycerides, unusual lipid results, or a need to evaluate triglyceride-rich lipoproteins. It is not usually a stand-alone routine screening test.

How is the test performed?

A blood sample is analyzed in the laboratory to determine the concentration of cholesterol carried in chylomicrons. Results are generally considered with triglycerides, total cholesterol, HDL cholesterol, and LDL cholesterol.

How do I prepare for the test?

Follow the preparation instructions provided by your clinician or laboratory. Because eating affects chylomicrons, fasting may be required in some cases; do not fast unless you have been specifically instructed to do so.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Chylomicron cholesterol

Frequently asked questions

Is this the same as a standard cholesterol test?
No. A standard cholesterol panel measures total cholesterol and usually HDL and LDL cholesterol, while this test specifically measures cholesterol carried in chylomicrons.
Why might chylomicron cholesterol be high?
It may be associated with high triglycerides, a recent fatty meal, or reduced clearance of triglyceride-rich particles. Your clinician will interpret the result alongside your other lipid tests and medical history.
Do I need to fast before this test?
Sometimes. Chylomicrons increase after eating, so your clinician or laboratory may request a fasting sample. Follow their instructions and contact them if you are unsure.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy