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
Collection Medium:
)
|
| Urine - 24 hour/timed plastic urine container |
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.