Calcium, Ionized

Last Modified: 10/22/2021 7:23:10 AM


  Medicare Medical Necessity Restrictions May Apply
Medical Necessity Documentation:

Client Notes:  
Patient 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

Collection Instructions: Do not uncap specimen

Transport & Storage: Temperature/Stability:

8 hours Ambient

Rejection Criteria: Collected in Microtainer; if cap has been removed at any time prior to testing or using a previously collected specimen. For more information see documentation below
Reference Range: 4.5 - 5.3 mg/dL
Critical Ranges:
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
Clinical Significance:  
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. 
Custom Panel: No

PRODUCTION SCHEDULE

Stat Eligible: Yes
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Parkview Dekalb, Parkview Hospital Randallia, Parkview Huntington, Parkview LaGrange, Parkview Noble, Parkview Regional Medical Center, Parkview Wabash, Parkview Warsaw , Parkview Whitley
PHL Test Code: CAION
EPIC Test Code: LAB54
Alternate Test Names: Ca++; Free Calcium; Ionized Calcium
Included Tests:  
CPT Coding: 82330

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