Home
HelpTest Code UCALR or LAB371 Calcium, 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 < 2.0. 3. Centrifuge the urine aliquot. 4. Deliver the urine aliquot to the chemistry department. |
Specimen Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated | 4 days |
| Room Temperature | 2 days | |
| Frozen | 3 weeks |
Specimen Rejection Criteria
Quantity not sufficient
Useful For
Measurement of calcium for the evaluation of calcium oxalate and calcium phosphate kidney stone risk, and calculation of urinary supersaturations
Methodology
Roche Cobas - Spectrophotometric
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
82340
LOINC Code
17862-4