Test Catalog

Test ID: HEXU    
Iohexol, Timed Collection, Urine

Method Description Describes how the test is performed and provides a method-specific reference

Timed urine specimens are obtained after subcutaneous injection of nonradiolabeled iohexol. Iohexol results are acquired via a liquid chromatography-tandem mass spectrometry (LC-MS/MS) system. A ThermoFisher LX-2 Cohesive HPLC System and an ABSciex 5500 MS/MS are used for analysis.(Seegmiller JC, Burns BE, Lieske JC, et al: Discordant glomerular filtration rate determinations between iothalamate and iohexol renal clearances. Poster Session at: Renal Week 2010. 43rd Annual Meeting of the American Society of Nephrology. Denver, CO, 2010 Nov 16-21)

PDF Report Indicates whether the report includes an additional document with charts, images or other enriched information


Day(s) Performed Outlines the days the test is performed. This field reflects the day that the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time before the test is performed. Some tests are listed as continuously performed, which means that assays are performed multiple times during the day.

Monday through Friday

Report Available The interval of time (receipt of sample at Mayo Clinic Laboratories to results available) taking into account standard setup days and weekends. The first day is the time that it typically takes for a result to be available. The last day is the time it might take, accounting for any necessary repeated testing.

3 to 4 days

Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

7 days

Performing Laboratory Location Indicates the location of the laboratory that performs the test