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Ammonia

Alternative Names:NH3
Laboratory:Clinical Biochemistry
Test Code:AMM
Medicare rebatable:Yes
Specimen Types:Plasma
Container Types:
EDTA 4 mLEDTA 4 mL
Adults Volume or Mass:4 mL
Minimum/Paediatric Volume or Mass:2 mL
Collection & Request Instructions:A separate container is required for this test.
Collect on Ice
Retrospective testing not possible.

As haemolysed specimens are not suitable for ammonia measurements, blood collection should be performed via venipuncture (and not heel prick).

For outpatient requests, collection should be performed at The Northern Hospital Epping rooms only.

Transport Instructions:On Ice
Send to lab immediately
Processing Instructions:

Centrifuge immediately and aliquot plasma. Separated plasma stable for 2 hours at 4 degrees Celcius, 3 weeks frozen at -20 degrees Celsius. Freeze plasma if there is a delay in testing.

Assay Frequency:Daily