Calcium (Total)
| Label Mnemonic: | CA |
| Epic code: | LAB53 |
| Order form: | Laboratory Requisition |
| Supply order: | Supply Order Form |
| Billing: | Billing Policies |
| CPT code: | 82310 |
Specimen(s):
Plasma
Collection Medium:
 |
| Plasma Separator Tube 4.5 mL |
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL whole blood from light green top tube or 1 light green
Microtainer® for pediatric patients
Testing
Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Reference Range:
8.5-10.5 mg/dL Pediatric Reference Ranges: Age Male Female Units Birth-30 days 8.5-10.6 8.4-10.6 mg/dL 31 days-1 year 8.7-10.5 8.9-10.5 mg/dL 1-6 years 8.8-10.6 8.5-10.5 mg/dL 7-12 years 8.7-10.3 8.5-10.3 mg/dL 13-15 years 8.5-10.2 8.4-10.2 mg/dL 16-18 years 8.4-10.3 8.6-10.3 mg/dL Critical value: <6.0 mg/dL and >13.0 mg/dL
Comments:
Refer to BD Microtainer® Tubes product sheet for detailed sample collection instructions.
Test
Limitations:
Hemolysis: No significant interference up to an H index of 1000
(approximate hemoglobin concentration: 1000 mg/dL).
Lipemia: No significant interference up to an L index of 1000 (approximate triglycerides concentration: 2000 mg/dL). Note there is poor correlation between turbidity and triglyceride concentration.
Icterus: No significant interference up to an I index of 60 (approximate conjugated and unconjugated bilirubin concentration: 60 mg/dL).
Criterion: Recovery within plus or minus 10% of initial value.
Reference:
Glick MR, Ryder KW, Jackson SA. Graphical Comparisons of Interferences in Clinical Chemistry Instrumentation. Clin Chem 1986;32:470-474.
Lipemia: No significant interference up to an L index of 1000 (approximate triglycerides concentration: 2000 mg/dL). Note there is poor correlation between turbidity and triglyceride concentration.
Icterus: No significant interference up to an I index of 60 (approximate conjugated and unconjugated bilirubin concentration: 60 mg/dL).
Criterion: Recovery within plus or minus 10% of initial value.
Reference:
Glick MR, Ryder KW, Jackson SA. Graphical Comparisons of Interferences in Clinical Chemistry Instrumentation. Clin Chem 1986;32:470-474.
Methodology:
Colorimetric
Sample
Processing:
Centrifuge at a speed and time necessary to get barrier separation of plasma/serum and cells within 1 hour of collection. Send specimen in original tube. Do Not transfer to another tube.
Each sample must be labeled with at least TWO full patient identifiers (First/Last Name & DOB are sufficient for non-UIHC affiliated clients) to avoid sample rejection/delays.
Each sample must be labeled with at least TWO full patient identifiers (First/Last Name & DOB are sufficient for non-UIHC affiliated clients) to avoid sample rejection/delays.
Sample
Storage:
Refrigerate.
All sample storage requirements are intended for delivery to UIHC within 24 hours of collection for testing. If samples won't arrive in this time period, please call the UIHC Core Lab for alternative storage/shipping instructions (319-356-3527).
All sample storage requirements are intended for delivery to UIHC within 24 hours of collection for testing. If samples won't arrive in this time period, please call the UIHC Core Lab for alternative storage/shipping instructions (319-356-3527).
Transport
Instructions:
Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
Place completed requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
CPT Code:
82310
See Additional Information:
Chemistry Critical Lab Values
Chemistry Critical Lab Values