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HelpTest ID DOXA1 Oxalate Analysis, Hemodialysate
Specimen Required
Specimen Type: Dialysate fluid
Patient Preparation: Patient should avoid taking vitamin C supplements for 24 hours prior to dialysis
Supplies: Urine Tubes, 10 mL (T068)
Container/Tube: Plastic, 10-mL urine tube or a clean, plastic aliquot container with no metal cap or glued insert
Specimen Volume: 5 mL
Collection Instructions: Adjust the pH of the specimen to 2.5 to 3.0 with 6M Hydrochloric Acid
Additional Information: Nonacidified frozen hemodialysate delivered to the laboratory within 3 days from collection will be accepted and the following comment will be added to the result: In nonacidified hemodialysate stored frozen, oxalate values may increase spontaneously.
Secondary ID
606473Useful For
Determining the amount of oxalate removed during a dialysis session
Individualizing the dialysis prescription of hyperoxaluric patients
Specimen Type
Dialysate FluidSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Dialysate Fluid | Frozen | 14 days |
Reject Due To
| All specimens will be evaluated at Mayo Clinic Laboratories for test suitability. |
Reference Values
Not applicable
Day(s) Performed
Monday through Friday
Report Available
3 to 7 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83945
Forms
If not ordering electronically, complete, print, and send a Renal Diagnostics Test Request (T830) with the specimen.