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Lipid profile with specific protein concentration measurement (e.g., apolipoprotein A1 or B)

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

This test measures certain proteins in your blood that play a key role in managing cholesterol and heart health. It helps assess your risk for cardiovascular conditions.

Quick summary

["This test helps evaluate your lipid metabolism and cardiovascular risk factors."]

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

Key facts at a glance

LOINC
18239-4
Short code
LE Scn Bld LA-mCnc
Synonyms
LE Scn Bld LA-mCnc
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Ref low
0
Ref high
100
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
la
CPT
83721
SNOMED
113079007
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The test detects specific proteins (like apolipoprotein A1 or B) that are linked to cholesterol transport in your blood. These proteins help determine the balance between 'good' and 'bad' cholesterol and may indicate how efficiently your body processes fats.

Why It Matters

High or low levels of these proteins can signal increased or reduced risk for heart disease, stroke, or other cardiovascular issues. Your doctor may use these results to guide treatment plans, such as lifestyle changes or medication.

How the Test Works

Blood is drawn, and the protein levels are measured using a sensitive laboratory technique (likely immunoassay or nephelometry). The test provides a precise concentration of these proteins in your serum or plasma.

Preparation and Sample Collection

No special preparation is needed, but avoid eating a high-fat meal 12 hours before testing. Your blood sample is collected in a standard tube and sent to the lab for analysis.

Reference range

Optimal: <100 mg/dLN/A

Specimen: whole-blood

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.

Abnormal levels of these proteins can indicate underlying conditions, such as dyslipidemia (abnormal lipid levels), familial hypercholesterolemia, or other metabolic disorders. They may also help monitor treatment effectiveness for conditions like atherosclerosis or cardiovascular disease.

Short name

Lipoprotein-related protein test

Frequently asked questions

What causes abnormal results in this test?
Abnormal results may be due to genetic factors, diet, lifestyle (e.g., smoking, physical activity), or underlying health conditions like diabetes or kidney disease. Your doctor will discuss these findings with you during your follow-up.
How often should I get this test?
Your doctor will determine the frequency based on your health status, family history, and risk factors. Regular testing may be recommended if you have a history of heart disease, high cholesterol, or other risk factors.
Can diet or exercise affect these protein levels?
Yes, diet (especially saturated fats, trans fats, and cholesterol) and exercise can influence protein levels related to cholesterol. Small, sustainable lifestyle changes, such as eating heart-healthy foods and staying active, may help improve your 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