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Ibuprofen concentration in serum/plasma

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

This test measures the amount of ibuprofen, a common pain reliever and anti-inflammatory medication, in your blood.

Quick summary

["Knowing your ibuprofen levels helps doctors monitor your dose and check for potential side effects."]

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

Key facts at a glance

LOINC
73010-1
Short code
Ibuprofen (neut) IgG SerPl Ql FC
Synonyms
Ibuprofen (neut) IgG SerPl Ql FC
Category
chemistry
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 doctor may order this test if you’re taking ibuprofen for pain, fever, or inflammation. They might also check levels if you’re experiencing unusual side effects like stomach upset, dizziness, or kidney issues.

What to Expect Before the Test

No special preparation is needed. You’ll provide a blood sample, usually drawn from your arm. If you’re on a low-sodium diet or have kidney problems, let your doctor know before testing.

What the Results Mean

Results help determine if your medication is working as intended or if adjustments are needed. High levels might indicate overdose or improper dosing, while low levels could mean insufficient treatment.

Common Reasons for Testing

Doctors may test ibuprofen levels if you’re taking high doses, have kidney issues, or are on other medications that interact with ibuprofen.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test is critical for managing patients on long-term ibuprofen therapy, especially those with kidney disease, liver problems, or a history of bleeding disorders. It helps prevent complications like toxicity or inadequate pain relief.

Short name

Ibuprofen Level

Frequently asked questions

How long does it take to get results?
Results are typically available within 1–3 business days, depending on your lab’s processing time.
What if my ibuprofen level is too high?
If levels are dangerously high, your doctor may adjust your dose, prescribe a different medication, or recommend temporary stopping of ibuprofen to avoid serious side effects.
Can I drink alcohol before this test?
Avoid alcohol for 24 hours before testing, as it may affect ibuprofen metabolism and result accuracy.
  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