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Lipid Profile with Specific Subfractions (Cholesterol Subtypes)

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

This test measures different types of cholesterol in your blood, which help assess your risk for heart disease and other health conditions.

Quick summary

["Understanding your cholesterol subtypes can help guide heart health strategies."]

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

Key facts at a glance

LOINC
60653-3
Short code
Li-Me' Skull XR
Synonyms
Li-Me' Skull XR
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
xr-measured
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

Why This Test Matters

Cholesterol isn’t just one substance—it comes in several forms, each with its own role in your body. High levels of certain cholesterol types (like LDL) can build up in your arteries over time, increasing your risk for heart disease or stroke. This test helps doctors see how your body is managing these different types.

What to Expect During Testing

You’ll typically have a simple blood draw from a vein in your arm. The sample is sent to a lab where it’s analyzed to measure specific cholesterol fractions. Results are usually ready within a few days.

Common Uses for This Test

Doctors may order this test if you have a family history of heart disease, high cholesterol, or other risk factors. It’s also used to monitor treatment progress for conditions like high cholesterol or to check for metabolic disorders.

What the Results Mean

Results show the amounts of different cholesterol types (like LDL, HDL, and triglycerides) in your blood. While exact values aren’t provided here, your doctor will interpret these numbers in relation to your overall health and any treatments you’re on.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Cholesterol Subtypes

Frequently asked questions

How often should I get this test?
The frequency depends on your health status. If you have no risk factors, your doctor may recommend this test every few years. If you have existing conditions or risk factors, they may suggest more frequent testing.
What if my results are out of range?
If your cholesterol subtypes are higher than expected, your doctor may recommend lifestyle changes (like diet and exercise) or medications to help manage them. If lower, it might indicate other health factors to discuss with your provider.
Can I eat or drink anything before this test?
For most cholesterol tests, you’ll need to fast for 9–12 hours before drawing blood. Your doctor or lab will give you specific instructions to follow.
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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