CALCIUM, IONIZED, SERUM OR PLASMA

Message

Sample MUST remain capped - do not open. Cannot add on this test to a previously drawn sample.

Test Code

CALCI

CPT Codes
82330

Preferred Specimen

1 Gold tube (gel separator)

Minimum Volume

0.25 mL

Other Acceptable Specimens

or 1 Green tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of serum and red cells.

Transport Temperature

Refrigerate

Specimen Stability

Refrigerate up to 2 days; otherwise freeze

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

The following conditions will result in a rejected sample:

Hemolyzed samples
Aliquoted samples - do not open tube

Methodology
ISE (Ion Selective Electrode)

Setup Schedule

M, T, W, Th, F, Sa, Sun

Reference Range

4.5 - 5.4 mg/dL

Clinical Significance

Half of the serum calcium is metabolically active and called ionized calcium. Ionized calcium is measured when other factors complicate the interpretation of the normal serum calcium test.

Performed By
Alverno Laboratories

Performing Laboratory
Alverno Central Lab
NCH10 (Chemistry, Nova Biomedical)

Last Updated: April 25, 2023

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.