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Test ID F2ISO F2-Isoprostanes, Random, Urine

Useful For

Assessment of in vivo lipid peroxidation

 

Considered to be an index of systemic oxidative stress over time

Method Name

F2ISO: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

CRETR: Enzymatic Colorimetric Assay

Reporting Name

F2-Isoprostanes, U

Specimen Type

Urine


Specimen 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 age

Day(s) Performed

Wednesday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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

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 US Food and Drug Administration.

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.

Report Available

2 to 9 days

NY State Approved

Yes

Forms

If not ordering electronically, complete, print, and send a Cardiovascular Test Request Form (T724) with the specimen.