Indirect Immunoassay for Ibuprofen in Plasma
This test measures the amount of ibuprofen, a common pain reliever and anti-inflammatory medication, in your blood plasma. It helps assess drug levels to ensure safe and effective dosing.
["Check ibuprofen levels to confirm proper medication use and avoid potential side effects."]
Key facts at a glance
- LOINC
- 73337-8
- Short code
- Ibuprofen ind plt IgM SerPl Ql FC
- Synonyms
- Ibuprofen 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 ibuprofen (e.g., Advil®, Motrin®) and want to verify your blood levels. It’s also used in monitoring patients with kidney or liver issues, or those on other medications that interact with ibuprofen.
What to Expect Before the Test
No special preparation is needed. You’ll provide a blood sample (usually from a vein in your arm) during a routine office visit or lab visit. The test is quick and typically painless.
What the Results Mean
Results help determine if your ibuprofen dose is appropriate. Too-high levels may cause side effects like stomach irritation or kidney stress, while too-low levels might mean the medication isn’t working as intended. Your provider will interpret results in the context of your medical history and current medications.
Common Reasons for Testing
This test may be done if you’re taking ibuprofen long-term, have kidney or liver problems, or are taking other medications that could affect how ibuprofen works in your body.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Monitoring ibuprofen levels is critical for patients with kidney disease, as ibuprofen can harm kidney function at higher concentrations. It’s also important for those on blood thinners (e.g., warfarin) or other medications that interact with ibuprofen, as unsafe levels could lead to complications. Your provider will adjust your dose if needed to keep levels safe and effective.
Short name
Ibuprofen Level (Indirect Immunoassay)
Frequently asked questions
How long does it take to get results from this test?
Can I eat or drink before this blood test?
What are typical symptoms if my ibuprofen level is too high?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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