Magnesium, 24-Hour Urine (w/o Creatinine)
Order Code:
MGU24
Test Summary
Useful in the assessment of nutritional and metabolic disorder. Increased levels indicate renal and respiratory failure and decreased levels indicate seizures, tetany, cardiac arrythmias, low CA++ and K+.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
10 mL urine in 24-hour urine container 25mL 6N HCL Submit a 10 mL aliquot of a 24-Hr collection. Collect urine with 25mL of 6N HCL to maintain a PH below 3.
Minimum Volume
1 mL
Instructions
Do not include first morning specimen: collect all subsequent voiding's. 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 request form and urine vial.
Patient Preparation
N/A
Storage
24-hour Urine container 24mL 6N HCL
Transport Temperature
Room Temperature
Specimen Stability
- Room Temperature = 4 days
- Refrigerated = 7 days
- Frozen = 3 months
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Order Code
MGU24
EPIC (Premier) Code
LAB293
Includes
N/A
CPT Code
- 83735
Billing Code
- 670328
- 500002
CPT Statement
Methodology
Spectrophotometry (SP)
FDA Status
FDA Approved
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675
33608 Ortega Highway
San Juan Capistrano CA, 92675
Department
Reference Testing
Reference Range
N/A
Setup Schedule / Expected Turnaround Time
Tuesday - Friday; Report available: 1 day
Specimen Collection
Special Instructions
N/A
Preferred Specimen
10 mL urine in 24-hour urine container 25mL 6N HCL Submit a 10 mL aliquot of a 24-Hr collection. Collect urine with 25mL of 6N HCL to maintain a PH below 3.
Minimum Volume
1 mL
Instructions
Do not include first morning specimen: collect all subsequent voiding's. 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 request form and urine vial.
Patient Preparation
N/A
Storage
24-hour Urine container 24mL 6N HCL
Transport Temperature
Room Temperature
Specimen Stability
- Room Temperature = 4 days
- Refrigerated = 7 days
- Frozen = 3 months
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Result Information
Methodology
Spectrophotometry (SP)
Testing Laboratory
N/A
Reference Range
N/A
Setup Schedule / Expected Turnaround Time
Tuesday - Friday; Report available: 1 day