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CALCIUM, IONIZED
Number 281
CPT Code 82330
Alias CALCIUM, IONIZED
Specimen Container SST
Specimen Type Serum
Turn Around Time 
Days Performed 
Reference Range 4.5-5.6 mg/dL
Alternate Specimen 
Volume 1 ml serum
Stability Ambient 14 Days
Stability Refrigerated 14 Days
Stability Frozen N/A
Patient Preparation 
Methodology 

Ion-selective electrode (ISE)

Limitations 

Total calcium remains the first line test for evaluation of calcium abnormality.

Rejection Criteria 

Opened gel-barrier tube; hemolysis; plasma specimen

Additional Instructions 

Send a separate tube for test; affix labeling on top of tube indicating “DO NOT OPEN”

Performing Laboratory Reference Laboratory
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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

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COVID-19 Testing Guidance

Primex Clinical Laboratories strives to provide clients with quality testing services to better support patient health. With the ongoing pandemic, COVID-19 testing has become high in demand yet testing supplies are limited.

Read More