IONIZED CA
Calcium, Ionized, Plasma
EPIC Test Procedure Code: LAB2256
Performing Lab:
Saint Luke's Regional Laboratories
Container Type:
Green top (lithium heparin) tube
Specimen Type:
Plasma
Preferred Volume:
2 mL
Minimum Volume:
0.5 mL
Collection Procedure:
1. Centrifuge the specimen with the stopper in place at 3000 rpm for 5 minutes to separate the plasma from the cells.
2. Keep the specimen anaerobic (do not transfer) and send at room temperature in the plasma gel tube.
3. Label the specimen appropriately.
4. The specimen must arrive within 5 days of collection.
5. The tube must remain capped and anaerobic until analysis.
Store and Transport:
Room temperature
Unacceptable Condition:
1. Green top (sodium heparin) and grey top (sodium fluoride) tubes are unacceptable.
2. Hemolysis will falsely lower the ionized calcium result.
CPT Codes:
82330 - Ionized Calcium (EAP 30044180)
Test Schedule:
Monday through Sunday
Reference Ranges:
4.5 - 5.3
mg/dL
Critical values:
< 3.0 or > 7.0
mg/dL