Calcium
Label Mnemonic: | UCA |
Epic code: | LAB580 |
Order form: | Laboratory Requisition |
Supply order: | Supply Order Form |
Billing: | Billing Policies |
CPT code: | 82340 |
Specimen(s):
Urine Quantitative
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
24 hr urine; no preservative. Collection other than 24 hr will not be calculated for mg/24 hr.
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
3 hours (upon receipt in laboratory)
Reference Range:
Due to variations in urinary calcium that vary in part based on diet, no reference range used in Epic. 24-Hour urinary calcium concentrations vary with amount of calcium in diet. Calcium-free diet: 5-40 mg Ca/day in urine Low to average calcium intake (up to 800 mg/day): 50-300 mg Ca/day in urine High calcium diet (800 mg/day or more): > 250 mg Ca/day in urine
Methodology:
Colorimetric
Instructions:
Record dates and time of collection on requisition.
Sample
Processing:
Submit in leak-proof container.
Label transport tube with two patient identifiers, date and time of collection.
Label transport tube with two patient identifiers, date and time of collection.
Sample
Storage:
Room Temperature.
Transport
Instructions:
Ship at room temperature or refrigerate.
Place requisition in bag, seal bag, and tape securely to (urine) container.
Place requisition in bag, seal bag, and tape securely to (urine) container.
CPT Code:
82340