OXALATE, URINE
Marquette General Health System
HLAB/HOL Code |
OX | |
MGH LIS Test No |
710 | |
Schedule |
Daily | |
Testing Time |
1 day | |
Testing Lab |
Mayo Labs | |
QORR Test Code |
OX | |
Type |
||
Volume |
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Temperature |
Refrigerate | |
Preservative |
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Collection Info |
1. Collect a 24-hour urine collection. 2. Add 30 mL of 6N HCL at end of 24-hour urine collection (within 4 hours of completion of collection). See "Urine Preservatives" in Special Instructions for multiple collections. 3. Adjust pH to 2.5-3.0 with 6N HCL and mix well before aliquot is taken. 4. Send 5.0 mL of acidified specimen in a plastic, 13-mL urine tube or a clean, plastic aliquot container with no metal cap or glued insert. (SPECIMEN COLLECTED OR SENT IN A CONTAINER WITH A METAL CAP IS NOT ACCEPTABLE.) 5. Send specimen refrigerated. NOTE: 1. Avoid taking large doses (>2.0 g orally/24 hours) of vitamin C during specimen collection. 2. 24-HOUR VOLUME IS REQUIRED ON REQUEST FORM FOR PROCESSING. Urine Preservative Collection Options Note: The addition of preservative or application of temperature controls must occur within 4 hours of completion of the collection. Ambient: Yes Refrigerate: Yes Frozen: Yes 6N HCl: Preferred 50% Acetic Acid: Yes Na2CO3: No Toluene: Yes 6N HNO3: Yes Boric Acid: Yes Thymol: Yes |
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Clinical Utilities CPT Codes Reference Range
83945
0.11-0.46 mmol/specimen
The reference value is for a 24-hour collection. Specimens
collected for other than a 24-hour time period are reported in
units of mmol/L for which reference values are not established.
(Units for NIH)
9.7-40.5 mg/24 hours
Component Information
Additional Comments Questions or Comments email support@mgh.org
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