Calcium, Ionized

Overview

  • EPIC Code:
  • LAB54
  • Soft Test Code:
  • CAION
Alternate Names
  • Ca++
  • Free Calcium
  • Ionized Calcium

Specimen Collection & Preparation

Specimen Requirements

3.0 mL Whole Blood Dark Green Top Tube - Li Heparin

Minimum 0.5 mL whole blood in a 3.0 mL Syringe with Heparin or Minimum of 0.2 mL whole blood in a Tuberculin Syringe with Heparin

 

Alternate Specimen

3.0 mL Plasma in a PST Mint Green Top Tube - Li Heparin  "Do not uncap specimen" (Centrifuge within 8 hours following collection)  24 hours refrigerated
or 
1 Full 5.0 mL SST Gold Top Tube "Do not uncap specimen" (Must be centrifuged within 8 hours of collection); Separated serum stable for 24 hours refrigerated 

Above are NOT appropriate for PVH, PHH, PWB, PWR, PWH, PNH, PLH for the GEM 4000

TransportAndStorage

8 hours Ambient

Collection Instructions

Do not uncap specimen

Clinical Interpretation

Reference Range:

4.5 - 5.3 mg/dL


Test Comments:

 A tube containing less than 3.0 ml blood exposes the specimen to residual air.  Exposure to residual air may affect ionized calcium values.  Values obtained on a specimen containing less than 3.0 ml of blood will be reviewed and may be rejected if results are questionable. 


Methodology:
  • Ion Selective Electrode (ISE)

Documentation

 A tube containing less than 3.0 ml blood exposes the specimen to residual air.  Exposure to residual air may affect ionized calcium values.  Values obtained on a specimen containing less than 3.0 ml of blood will be reviewed and may be rejected if results are questionable. 


Production Schedule

Sites Performed
  • Parkview Kosciusko Hospital
  • Parkview LaGrange Hospital
  • Parkview Noble Hospital
  • Parkview Randallia Hospital
  • Parkview Regional Medical Center
  • Parkview Southwest
  • Parkview Wabash Hospital
  • Parkview Whitley Hospital
Days Performed
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Departments
  • Chemistry
Stat Eligible

Coding & Compliance

CDM

01420113


CPT Coding

82330


Medical Necessity May Apply