Test Code CA Calcium, Plasma or Serum
Methodology
O-Cresolphthalein Complexone
Performing Laboratory
Decatur Morgan Hospital-Decatur Campus/Parkway Campus
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Draw blood in a green-top (lithium heparin) tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of lithium heparin plasma.
Note: 1. Indicate plasma on request
form.
2. Label specimen appropriately (plasma).
Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL (pediatric: 0.2 mL) of serum.
Note: 1. Indicate serum on request
form.
2. Label specimen appropriately (serum).
Reference Values
0 - 6 days: 7.2-12.0 mg/dL
7 days-2 years: 9.0-11.0 mg/dL
>2 years: 8.8-10.2 mg/dL
Critical values (automatic call-back): ≤7.0 mg/dL
or ≥12.0 mg/dL
Test Classification and CPT Coding
82310