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Fenofibrate (Fibrate) Concentration, Serum

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

This test measures the amount of fenofibrate, a medication used to lower cholesterol and triglycerides, in your blood serum.

Quick summary

["Knowing your fenofibrate levels helps your doctor monitor your treatment for high lipids."]

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

Key facts at a glance

LOINC
107610-8
Short code
Synthetic fen analogs Ur Ql
Synonyms
Synthetic fen analogs Ur Ql
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
86038
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your doctor may order this test if you’re taking fenofibrate to check if it’s working properly. It helps ensure your medication is at an effective dose and to detect any potential issues, such as very low or high levels that could affect your health.

What to Expect Before the Test

No special preparation is needed. You may have a blood draw from a vein in your arm, similar to other blood tests. If you’re on fenofibrate, let your healthcare provider know before the test.

What the Results Mean

Results are compared to a general reference range for fenofibrate in serum. Abnormal results may signal whether your medication is too high or too low, which could impact your cholesterol or triglyceride levels.

Common Reasons for Abnormal Results

High levels might indicate improper dosing or absorption issues, while very low levels could mean the medication isn’t working as intended. Your doctor will discuss these findings with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Fenofibrate Level

Frequently asked questions

How often should I get this test?
Typically, fenofibrate levels are checked periodically—usually every few months—if you’re on long-term treatment to monitor effectiveness and adjust your dose if needed.
Can diet or other medications affect this test?
Yes, diet (especially high-fat foods) and other lipid-lowering medications (like statins) can influence cholesterol and triglyceride levels, which may indirectly affect fenofibrate metabolism. Always inform your doctor about all medications.
What symptoms might indicate abnormal fenofibrate levels?
Symptoms of very low levels (e.g., fatigue, high cholesterol) or very high levels (e.g., muscle pain, unusual fatigue) may not always appear. Your doctor will rely on lab results and clinical assessment to guide care.
  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