A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Calcium
Test Code303
CPT Codes
82310
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Other Acceptable Specimens
Sodium heparin (green-top) tube • Lithium heparin (green-top) tube
Transport Container
Serum separator tube (SST)
Transport Temperature
Room temperature
Specimen Stability
Serum and plasma
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Anticoagulants other than heparin
Methodology
Spectrophotometry (SP)
Setup Schedule
Daily
Report Available
1 day
Clinical Significance
Serum calcium is involved in the regulation of neuromuscular and enzyme activity, bone metabolism and blood coagulation. Calcium blood levels are controlled by a complex interaction of parathyroid hormone, vitamin D, calcitonin and adrenal cortical steroids. Calcium measurements are useful in the diagnosis of parathyroid disease, some bone disorders and chronic renal disease. A low level of calcium may result in tetany.
Performing Laboratory
Quest Diagnostics-Seattle |
1737 Airport Way S Suite 200 |
Seattle, WA 98134-1636 |
Last Updated: November 6, 2024