|Values are valid only on day of printing.|
Container/Tube: Plastic, 10-mL urine tube (Supply T068)
Specimen Volume: 7 mL
1. Collect a random urine specimen.
2. No preservative.
3. Specimen pH should be between 4.5 and 8 and will stay in this range if kept refrigerated. Specimens with pH >8 may indicate bacterial contamination, and testing will be cancelled. Do not attempt to adjust pH as it will adversely affect results.
1. A timed 24-hour urine collection is the preferred specimen for measuring and interpreting this urinary analyte. Random collections normalized to urinary creatinine may be of some clinical use in patients who cannot collect a 24-hour specimen, typically small children. Therefore, this random test is offered for children <16 years old.
2. Avoid taking large doses (>2 g orally/24 hours) of vitamin C prior to specimen collection.
|Urine||Refrigerated (preferred)||14 days|