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Calcium : 303
Test CodeCAAU or 303
CPT Codes
82310
Transport Container
Preferred Specimen
1 mL serum
Alternative Specimens
Sodium heparin (green-top) tube or Lithium heparin (green-top) tube
Minimum Volume
0.5 mL
1 mL serum
Alternative Specimens
Sodium heparin (green-top) tube or Lithium heparin (green-top) tube
Minimum Volume
0.5 mL
Transport Temperature
Room temperature.
Specimen Stability
Serum and plasma:
Room temperature: 7 days; Refrigerated: 5 days; Frozen: 28 days
Room temperature: 7 days; Refrigerated: 5 days; Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Anticoagulants other than heparin
Methodology
Spectrophotometry
Setup Schedule
Sunday - Saturday
Report Available
1 day
Reference Range
Male (mg/dL) Female (mg/dL)
<1 month: 8.4-10.6 8.4-10.6
1-11 months: 8.7-10.5 8.7-10.5
1-3 years: 8.5-10.6 8.5-10.6
4-19 years: 8.9-10.4 8.9-10.4
20-49 years: 8.6-10.3 8.6-10.2
>49 years: 8.6-10.3 8.6-10.4
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
med fusion
