Home
HelpTest Code HEXP Iohexol, Plasma
Reporting Name
Iohexol, PPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Useful For
Determining glomerular filtration rate in plasma specimens
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Specimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube: Green top (heparin)
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot plasma into a plastic vial.
Specimen Type
Plasma HeparinSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma Heparin | Refrigerated (preferred) | 7 days | |
| Frozen | 35 days | ||
| Ambient | 7 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
Not applicable
Interpretation
Low glomerular filtration rate (GFR) values indicate abnormal kidney function, which may be either reversible/transient or irreversible/permanent. GFR tends to decline with age.
Day(s) Performed
Monday through Friday
Report Available
3 to 4 daysTest Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82542
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| HEXP | Iohexol, P | 93974-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 61713 | Iohexol, P | 93974-4 |
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.