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Test Name:
Calcium, Serum or Plasma


  • SBMF No:
    29039
  • Performance Lab Name:
    Automated Lab
  • Test Mnemonic:
    CA-
  • ABN:
    Not required
  • CPT Code:
    82310
  • LOINC Code:
    17861-6
  • Also Known As:
    Ca
    Total Calcium
  • Also See:
    23026 Calcium, Ionized
  • Spec Type:
    Serum or plasma
  • Spec Container:
    Gold top (SST), Red top (serum), Light green top (PST), or Green top (lithium heparin) tube
  • Pref Vol:
    1.0 mL
  • Min Vol:
    0.2 mL
  • Fasting:
    No
  • Spec Collect:
    Routine venipuncture
  • Spec Process:
    Serum sample tubes, clot 30 minutes
    Promptly centrifuge 15 minutes
    Immediately transfer serum or plasma to separate plastic tube
    Properly centrifuged gel barrier tube sample does not require transfer of specimen to separate tube
  • Spec Store Transport:
    Refrigerated
  • Spec Stability:
    1 week refrigerated (2-8°C)
  • Methodology:
    Photometric
  • Clinical Significance:
    Refer to:
    Lab Tests Online: A public resource on clinical lab testing from the laboratory professionals who do the testing
  • Reference Range:
    0-1.0 year: 8.0-11.0 mg/dL
    Greater than 1 year-Adult: 8.2-10.4 mg/dL
  • Critical Low Value:
    6.9 mg/dL
  • Critical High Value:
    13.1 mg/dL
  • Day Run:
    Sun-Sat (daily)
  • Time Run:
    As received
  • Time Reported:
    4 hours
  • Test Type:
    CHEMISTRY