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Test Code HEXU Iohexol, Timed Collection, Urine

Reporting Name

Iohexol, U

Useful For

Determining glomerular filtration rate in urine specimens

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type


Specimen Required

Supplies: Sarstedt 5 mL Aliquot Tube (T914)

Container/Tube: Plastic vial

Specimen Volume: 5 mL

Collection Instructions: Collect a timed urine specimen.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

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

Reference Values

Not applicable

Day(s) Performed

Monday through Friday

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.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
HEXU Iohexol, U 93973-6


Result ID Test Result Name Result LOINC Value
61712 Iohexol, U 93973-6

Report Available

3 to 4 days


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