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High-Density Lipoprotein Cholesterol, Serum/Plasma — Mass Concentration

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

This blood test measures the amount of cholesterol carried by high-density lipoprotein (HDL), a type of cholesterol associated with cardiovascular health.

Quick summary

["HDL cholesterol is one part of a complete cholesterol panel and is interpreted along with LDL cholesterol, triglycerides, and other risk factors."]

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

Key facts at a glance

LOINC
2085-9
Short code
HDLc SerPl-mCnc
Synonyms
HDLc SerPl-mCnc
Category
lipid
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Ref low
40
Ref high
60
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
83700
SNOMED
113079008
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?

HDL cholesterol measures the amount of cholesterol in high-density lipoprotein particles in your blood. HDL helps transport cholesterol away from the arteries and back to the liver for processing.

Why might I need this test?

This test is usually part of a lipid panel to help assess cardiovascular risk. Your healthcare professional may also order it to monitor cholesterol levels, weight changes, diabetes, or treatment effects.

How is the test performed?

A blood sample is collected from a vein, usually from the arm, and sent to a laboratory. The laboratory measures the amount of cholesterol in HDL using a laboratory testing method.

How do I prepare for the test?

Follow your healthcare professional's instructions about fasting. Some lipid tests are more accurate after fasting, while others do not require it. Tell your clinician if you are pregnant, have had a recent illness, or are taking cholesterol-lowering medicines.

Reference range

Adult males: >40 mg/dL; Females: >50 mg/dLN/A

Specimen: serum

Fasting for 12-14 hours preferred. Water is permitted. Avoid alcohol for 24 hours before the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Higher HDL cholesterol is generally associated with a lower risk of cardiovascular disease, but it does not eliminate the risk and should not be interpreted by itself. Low HDL cholesterol can occur with conditions such as diabetes, obesity, smoking, or certain inherited disorders. HDL levels can also change with diet, physical activity, weight changes, and medications, so results should be reviewed with your healthcare professional.

Short name

HDL cholesterol

Frequently asked questions

Is HDL cholesterol the same as total cholesterol?
No. Total cholesterol includes cholesterol carried by all lipoproteins, while HDL cholesterol measures only the portion carried by HDL.
Do I need to fast before this test?
It depends on the instructions for your lipid panel. Fasting for about 9 to 12 hours may be requested because recent meals can affect triglyceride and cholesterol measurements.
Can lifestyle changes improve HDL cholesterol?
Regular physical activity, a balanced diet, and weight management may help improve cholesterol patterns. Your healthcare professional can recommend steps based on your overall cardiovascular risk and other test results.
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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