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Ibuprofen Quantitative Serum/Plasma Concentration

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

This test measures the amount of ibuprofen (a common pain reliever) in your blood. It helps doctors check how much medicine you’re taking and whether it’s working properly.

Quick summary

["Knowing your ibuprofen level helps ensure safe dosing and avoid side effects."]

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

Key facts at a glance

LOINC
73336-0
Short code
Ibuprofen ind plt IgG SerPl Ql FC
Synonyms
Ibuprofen ind plt IgG 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

Doctors may order this test if you’re taking ibuprofen for chronic pain, arthritis, or fever and want to monitor your dose. It’s also used in cases of suspected overdose or drug interactions.

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 issues, let your doctor know.

What the Results Mean

Results show how much ibuprofen is in your blood at the time of testing. They help determine if your dose is too high, too low, or safe. Your doctor will interpret these results based on your medical history.

Common Reasons for Monitoring Ibuprofen Levels

This test is critical for patients on long-term ibuprofen therapy, those with kidney problems, or those taking other medications that could interact with ibuprofen.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Ibuprofen levels are clinically significant because they help prevent overdose risks (e.g., kidney damage) and ensure therapeutic effectiveness. Abnormally high levels may indicate improper dosing or toxicity.

Short name

Ibuprofen Level

Frequently asked questions

Why did my doctor ask for this test?
Your doctor may have ordered it to check if your ibuprofen dose is appropriate for your condition, to monitor for side effects, or to rule out overdose.
What do my ibuprofen blood test results mean?
Your results show your current ibuprofen concentration. Your doctor will compare these to your dose and medical needs to adjust treatment if needed.
Can I eat or drink before this test?
You can eat and drink normally unless your doctor specifies otherwise. Avoiding alcohol or certain medications before testing may be advised, but check with your provider.
  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