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Choose collection locationCardiac · Individual laboratory test
Apolipoprotein B (Apo B)
Apo B is carried by particles that can deposit cholesterol in artery walls. It helps estimate the number of these particles, including LDL.
Price for this test on its ownAED 175Test price AED 75
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
- Sample
- Serum
- Laboratory turnaround
- 24 hours
- Collection
- Dubai
- Laboratory
- Intel Lab
Understanding the test
What does Apolipoprotein B (Apo B) measure?
Also called LDL Structural Protein
Apo B can help clarify risk when LDL cholesterol and triglycerides give different impressions, or when a clinician wants another way to follow lipid treatment.
When it may be requested
Cholesterol and particle number
Apo B can provide additional information when LDL cholesterol is discordant with the wider lipid profile.
An elevated triglyceride pattern
A clinician may use Apo B to clarify the burden of cholesterol-carrying particles in this setting.
Before your sample
Prepare for collection
SpecimenSerum
Your checklist
Apo B can usually be collected without fasting. Check the instructions if triglycerides are in the same booking, and record lipid treatment changes since your previous result.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
Understanding your result
24 hoursLaboratory turnaround
Result guideApolipoprotein B (Apo B)
Reading your result
It reflects the burden of particles associated with plaque formation. It does not show whether plaque is already present or where it may be.
What can affect it
- Apo B does not show the location or extent of artery plaque.
From sample to follow-up
Your testing journey
Laboratory testApolipoprotein B (Apo B)
- Specimen
- Serum
- Turnaround
- 24 hours
Open your laboratory report
Look for Apolipoprotein B (Apo B) in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Discuss the next step
Ask whether Apo B and LDL cholesterol tell a similar story in your case, particularly if your triglycerides are raised.
Health packages
Packages that include this test
Compare the other tests in each package before choosing.
Clinical expertise
Your laboratory team
Patient questions
Before you book
How can Apo B and LDL cholesterol tell different stories?
The amount of cholesterol per particle varies. Two people with similar LDL cholesterol can therefore carry different numbers of particles.
Does a high Apo B mean I have heart disease?
No. A high Apo B means more particles are circulating that can deposit cholesterol in artery walls, which raises risk over time, but it cannot show whether plaque has actually formed. Imaging and your other risk factors, such as blood pressure, smoking, diabetes and family history, answer that question. Your doctor uses Apo B as one part of a wider risk assessment.
Why measure Apo B if I already know my LDL cholesterol?
LDL cholesterol tells you how much cholesterol is being carried; Apo B tells you how many particles are carrying it. When triglycerides are raised the two can diverge, and the particle count tracks risk more closely.
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An in-depth cardiovascular risk panel combining advanced cardiac markers with a full general health screen.
- biomarkers
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- Samples
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- Listed turnaround
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Lipid / Cholesterol Profile
Total cholesterol, HDL, directly measured LDL, VLDL and triglycerides from one blood sample.
- biomarkers
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- Samples
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- Listed turnaround
- 24 hours
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Basic Health Checkup
Blood count, liver, kidney, cholesterol, blood sugar and urine tests: the essentials in one visit.
- biomarkers
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- Listed turnaround
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Basic Wellness
A complete blood count with liver enzymes, cholesterol, kidney markers and fasting blood sugar from one blood sample.
- biomarkers
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- Samples
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- Listed turnaround
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Your next step
Apolipoprotein B (Apo B) test at home.
Sources & further reading
Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.