Chromium, Urine (Referred Out) - Saskatoon
Discipline
Biochemistry
Overview
Description
- Random or 24 hour urine collections are acceptable
- Avoid mineral supplements for five days prior to collecting urine specimens
Specimen Information
Specimen types accepted
- Urine
Specimen collection container
- Preferred Collection Container: Metal-free 24 hour collection container
- Alternative Collection Container: Metal-free random urine container (orange, unlined lid)
Collection procedure
- Refer to 24 hour urine collection procedure
- Keep specimen cool during collection and after aliquotting
- For random urine, collect midstream
- If submitting aliquot of 24 hour urine, provide volume and dates and times of collection
Required volume
- Optimal Volume:
- 50 mL (random)
- 10 mL (24 Hour)
Transport and stability
- Store and ship refrigerated
Rejection criteria
- Specimens received where the collection protocols were not followed
- Urine collected or received in pink-top container (this container is not metal-free)
- Pathology and Laboratory Medicine Acceptance and Rejection Criteria
Performance
Days/times performed
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Maximum laboratory time
- 7 day turnaround time by testing laboratory
- Reported as per litre, and umol/mol creatinine
Last Updated: October 9, 2024