Home
HelpOrder Code F2ISO 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 an additional charge.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineSpecimen Required
Patient Preparation: Patient should not take nonsteroidal anti-inflammatory drugs within the 72 hours or aspirin within the 2 weeks prior to specimen collection.
Supplies: Sarstedt 5 mL Aliquot Tube (T914)
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 younger than 18 years of age
Day(s) Performed
Tuesday
CPT Code Information
82542
Method Description
15-F2t-Isoprostane is separated and quantified in urine by liquid chromatography-tandem mass spectrometry (LC-MS/MS).(Unpublished Mayo method)
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.