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Cholesterol — Substance Concentration

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

A test that measures the concentration of cholesterol in a patient sample. The specimen and measurement method are not specified in the abbreviated test name.

Quick summary

["This test measures how much cholesterol is present in the sample being tested."]

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

Key facts at a glance

LOINC
54371-0
Short code
Cholest Prt-sCnc
Synonyms
Cholest Prt-sCnc
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?

This test measures the concentration of cholesterol in a patient sample. Cholesterol is a fat-like substance made by the body and obtained from foods such as meat, dairy products, and some plant-based foods.

Why might I need this test?

Cholesterol testing may be used to assess cardiovascular risk, monitor a person taking cholesterol-lowering treatment, or investigate conditions that may affect cholesterol levels. It may be included in a broader lipid panel.

How is the test performed?

A laboratory analyzes the submitted specimen to measure its cholesterol concentration. Because the abbreviated test name does not clearly identify the specimen or method, these details should be confirmed with the ordering laboratory.

How do I prepare for the test?

Follow the preparation instructions provided by your clinician or laboratory. Some cholesterol tests are performed without fasting, while others may require fasting for several hours; do not fast unless it has specifically been requested.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Cholesterol

Frequently asked questions

Does this test require fasting?
It depends on the specific test and the instructions from your clinician. Fasting is not required for every modern cholesterol test, but it may be requested in certain situations.
Is this the same as a complete lipid panel?
Not necessarily. A cholesterol measurement may be included in a lipid panel, which also measures other types of blood fats such as triglycerides and specific cholesterol fractions.
What should I do if my cholesterol result is high?
Discuss the result with your healthcare professional, since its meaning depends on the type of cholesterol measured and your overall cardiovascular risk. Your clinician can recommend dietary changes, treatment, or repeat testing when appropriate.
  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