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