Vanderbilt Pathology Laboratory Services
Test Directory
CALCIUM BLOOD (CA)
Department: ChemistryTest Synonym(s): CA
CPT Codes: 82310
Methodology: Ion Specific Electrode
Reference Range: up to 7 days: 7.0-12.0 mg/dL, 7 days-up: 8.5-10.5 mg/dL
Tube Type: Light green PST (Lithium Heparin with gel) tube - 4.5 mL
Specimen: Plasma
Alternate Specimen: Red top tube - 5 mL
Pediatric Requirements: 2 microtainers
Volume: 2 mL plasma
Minimum Volume: 0.5 mL plasma
Temperature: Separate within one hour and store at ambient temperature until delivery.
Stability: < 3 days at 2-8ºC; 6 months at -20ºC
Reasons for Rejection: Hemolysis, improper collection
Days Performed: Daily
Times Performed: Continuous
TAT: STAT: 1 hour; ROUTINE: 2 hours after receiving in lab
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