Test Code MISC2MAYOF2ISO F2-Isoprostanes, Random, Urine
Reporting Name
F2-Isoprostanes, UUseful For
Assessment of in vivo lipid peroxidation
Considered to be an index of systemic oxidative stress over time
Additional Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
CRETR | Creatinine, Random, U | No | Yes |
Testing Algorithm
When F2-Isoprostanes testing is performed, urine creatinine will always be performed at no additional charge.
Performing Laboratory

Specimen Type
UrineSpecimen Required
Patient Preparation: Patient should not have taken nonsteroidal anti-inflammatory drugs within 72 hours or aspirin within 2 weeks prior to collection of a specimen.
Supplies: Aliquot Tube, 5 mL (T465)
Container/Tube: Plastic urine tube
Specimen Volume: 5 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative.
Specimen Minimum Volume
1 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Urine | Refrigerated (preferred) | 7 days | |
Frozen | 30 days | ||
Ambient | 7 days |
Reference Values
≥18 years: ≤1.0 ng/mg creatinine
Reference values have not been established for patients who are <18 years of ageDay(s) and Time(s) Performed
Wednesday; 11 a.m.
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
82542
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
F2ISO | F2-Isoprostanes, U | 90783-2 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
88677 | 15-F2t-Isoprostane, U | 90783-2 |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Method Name
F2ISO: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
CRETR: Enzymatic Colorimetric Assay
Forms
If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.