Pathology Handbook

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Ionised Calcium

Alternative Names:

iCa

Laboratory:

Clinical Biochemistry

Test Code:

ICA

Specimen Types:

Blood

Container Types:

Arterial Blood Gas Syringe
Venous Blood Gas Syringe

Adults Volume or Mass:

1 mL

Minimum/Paediatric Volume or Mass:

0.5 mL

Collection & Request Instructions:

Blood for ionised calcium should be collected anerobically into a blood gas syringe. Venous or arterial blood is suitable.

Transport Instructions:

Send to lab immediately

All ionised calcium samples must be received by the laboratory within 30 minutes post collection (at room temperature) or 1 hour if transported on an ice slurry.

If samples are collected at a non-TNH site, send to the laboratory on an ice slurry.

Assay Frequency:

Daily