CPT Code:


Test Type: Serum Kit Based
Stability Time:


Refrigerated: 7 days

Reference Range:
  • Low: <8.6 mg/dL
  • Normal: 8.6-10.4 mg/dL
  • High: >10.4 mgl/dL
  • Alert: ≤6.0 or ≥13.0 mg/dL


Calcium is an important mineral needed for blood clotting and bone health. This test measures the amount of calcium in the blood.

  • Elevated levels can indicate dehydration, hyperparathyroidism, kidney disease, bone cancer or high Vitamin D, Vitamin A, or Calcium intake.
  • Low levels can indicate hypoparathyroid gland problems, intestinal absorption problems, and kidney failure.

Methodology - Photometric

Collection Details:

Collection Instructions:

Preferred Specimen

1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST/Tiger Top)

Transport Temperature

Refrigerated (ship on frozen cold packs)