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Ezetimibe Metabolite Concentration in Serum (via High-Performance Liquid Chromatography)

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

This test measures the amount of a drug metabolite found in your blood serum. Ezetimibe is a medication used to lower cholesterol levels.

Quick summary

["This test helps monitor how your body processes ezetimibe, supporting treatment decisions for cholesterol management."]

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

Key facts at a glance

LOINC
73388-1
Short code
Ezetimibe ind plt IgM SerPl Ql FC
Synonyms
Ezetimibe ind plt IgM SerPl Ql FC
Category
hematology
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
flow-cytometry
CPT
82784
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 Is Done

Your healthcare provider may order this test if you’re taking ezetimibe (a cholesterol-lowering drug) and want to check how well your body is absorbing or processing it. It can also help assess if your dose needs adjustment.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for a few hours before the blood draw if instructed by your provider. Wear a loose shirt for easy access.

How the Test Is Performed

A healthcare professional will draw blood from a vein in your arm using a small needle. You may feel a brief pinch, but it usually doesn’t cause discomfort. The blood sample is then sent to a lab for analysis.

What the Results Mean

Results are typically reported as a concentration value (in micrograms per milliliter or similar units). Your provider will interpret these results in relation to your medical history and treatment goals.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Elevated levels of this metabolite may indicate poor drug absorption or metabolism, which could affect cholesterol-lowering effectiveness. Lower-than-expected levels might suggest the need for dose adjustments or alternative treatments. Always discuss results with your provider.

Short name

Ezetimibe Metabolite Level

Frequently asked questions

What causes this test to be ordered?
Your doctor may order this test if you’re on ezetimibe to check how your body processes the medication, especially if you have concerns about its effectiveness or side effects.
How long does it take to get results?
Results are usually available within 1–3 business days, depending on your lab’s processing time. Your provider will contact you once they’re ready.
Can I eat or drink before this test?
Follow your provider’s instructions—some tests require fasting, while others don’t. Generally, avoid food/drinks for 8–12 hours before blood draws unless specified otherwise.
  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