CPT code 81050 may be added at an additional charge for volume measurement
(Specimen Container)
Sterile Transport Container
(Transport Temperature)
| Temperature | Period |
|---|---|
| Room temperature | 4 days |
| Refrigerated | 7 days |
| Frozen | 90 days |
Please submit a 10 mL aliquot of a 24-hour collection. Collect urine with 25 mL of 6N HCL to maintain a pH below 3. Do not include first morning specimen; collect all subsequent voidings. The last sample collected should be the first morning specimen voided the following morning at the same time as the previous morning’s first voiding. Record 24-hour urine volume on test requisition and urine vial.
Useful in the assessment of nutritional and metabolic disorder. Increased levels indicate renal and respiratory failure and decreased levels indicate seizures, tetany, cardiac arrhythmias, Low CA++ and K +.
Magnesium, 24-Hour Urine
Male:
28-180 mg/24 h
Female:
18-130 mg/24 h
