Sign in →

Test Code HEXP Iohexol, Plasma

Reporting Name

Iohexol, Plasma

Useful For

Determining glomerular filtration rate in plasma specimens

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Plasma Heparin

Specimen Required

Supplies: Aliquot Tube, 5 mL (T465)

Collection Container/Tube: Green top (heparin)

Submission Container/Tube: Plastic, 5-mL tube (T465)

Specimen Volume: 1 mL

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Plasma Heparin Refrigerated (preferred) 7 days
  Frozen  35 days

Reference Values

Not applicable

Day(s) and Time(s) Performed

Monday through Friday; 8 a.m.-4:30 p.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


LOINC Code Information

Test ID Test Order Name Order LOINC Value
HEXP Iohexol, Plasma 93974-4


Result ID Test Result Name Result LOINC Value
61713 Iohexol, P 93974-4

Method Name

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


If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.