ARUP's Laboratory Test Directory

Calcium, Serum or Plasma : 0020027

Mnemonic: CA

Methodology: Quantitative Spectrophotometry
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Serum separator tube or plasma separator tube. Do not use powdered gloves during collection.

Specimen Preparation: Allow serum tube to clot completely at room temperature. Separate serum or plasma from cells within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Specimens from patients receiving EDTA therapy or Hypaque. EDTA, citrate, or oxalate.

Stability (collection to initiation of testing): After separation from cells: Ambient: 4 hours; Refrigerated: 3 weeks; Frozen: 8 months

Reference Interval:
By report (reports may vary based on instrumentation).
CPT Code(s): 82310