Test directory: Ionized Calcium

Ordering Code145
Test NameIonized Calcium
Preferred SpecimenWhole Blood
Preferred ContainerLithium Heparin (Green)
Other Specimen/ContainerWhole Blood In Lithium Heparin-PST (Green)
Optimum VolumeEntire Specimen
Collection InstructionsDraw full tube. Do Not uncap tube. If testing cannot be performed within 30 minutes of collection, place specimen on wet ice or refrigerate.
Handling InstructionsDo NOT centrifuge specimen
Forward to the laboratory immediately for testing. Keep tube tightly capped.
Transport RequirementsOahu: Refrigerated
Specimen StabilityAmbient: 30 Minutes
Refrigerated: 8 Hours
Rejection CriteriaClotted, Frozen, Insufficient quantity, Specimen older than stability limits, Under filled tube, Wrong specimen type,
Uncapped specimen, Microtainer specimen
Avail. StatYES
Analytic Time1 Day
MethodologyIon Selective Electrode (ISE)

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Ca ++ALL1.15-1.331.15-1.33mmol/L