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HelpTest Code LAB1972 Calcium, 24 Hour Urine
Clinical System Name
Urine Calcium Quantitation
Synonyms
CA U QNT
Sample Requirements
Specimen: Urine
Container(s): 24 Hour Urine Container
Preferred Vol: 24 hr collection
Minimum Vol: N/A
Note: No preservatives are needed to start collection. Please notify lab to obtain urine collection container. Refrigerate sample during collection. Document start and stop dates and times, along with patient information. Deliver labeled container to clinical lab upon completion.
Processing Instructions
Reject due to: Insufficient quantity, incorrect storage temperature, age of specimen
Spin: N
Aliquot: N
Temp: 2-8 C
Storage location:Store specimen in original container in CPA refrigerator. Labels should be placed in CPA refrigerator, FrigB bucket.
Off-site collection: No preservatives are needed to start collection. Please notify lab to obtain urine collection container. Referigerate sample during collection. Document start and stop dates and times, along with patient information. Send primary collection refrigerated to main campus for processing.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Room Temp |
5 d |
| Urine | Refrigerated |
5 w |
| Urine | Frozen |
6 m |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | M - F, day shift | 1 - 3 d |
Performing Laboratory
Seattle Children's Laboratory
Department
Department: Chemistry
Location: Chem East
Phone Number: 206-987-2617
CPT Codes
82340
Methodology
Method: Spectrophotometry by Vitros 4600
Analytical Volume: 2 mL urine
Reference Range
| Normal Diet | |
|---|---|
| < 1 month | up to 50 mg/24 hr |
| 1 month - Adult | 30 - 150 mg/24hr |
Result varies with calcium intake.