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HelpTest Code UMGR or LAB405 Magnesium, Random, Urine
Specimen Requirements
| Container Type: |
Sterile urine cup
|
| Optimal Collection Volume: |
5 mL |
| Minimum Volume: |
1 mL |
| Collection Instructions: |
1. Collect a random urine specimen from the patient. 2. Ensure the lid is secured tightly before sending it to the lab. |
| Specimen Transport: |
Refrigerate |
| Processing Instructions: |
1. Pour off urine from the collection container into a labeled aliquot. 2. Acidify the aliquot to a pH of < 1.0. 3. Centrifuge the urine aliquot. 4. Deliver the urine aliquot to the chemistry department. |
Specimen Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated | 3 days |
| Room Temperature | 3 days | |
| Frozen | 1 year |
Specimen Rejection Criteria
Quantity not sufficient
Methodology
Roche Cobas - Colorimetric
Reference Ranges
No reference range established.
Day(s) Performed
24/7
Expected TAT
Same day
Performing Laboratory
Bronson Laboratory, Chemistry - Kalamazoo and Battle Creek
Sample Retention Time
7 days
CPT Code
83735
LOINC Code
19124-7