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AMMONIA
Test CodeLAB47
Preferred Specimen
One 4 mL lavender top tube on ice or 7mL purple on ice
Pediatric: One lavender top microtainer on ice.
Pediatric: One lavender top microtainer on ice.
Instructions
Sample must be centrifuged and plasma separated from cells immediately following collection and stored frozen.
Transport Temperature
Frozen
Specimen Stability
Not Stable, blood tube must be placed "immediately" on ice after collection and sent to the laboratory without delay, for centrifugation within 15 minutes of collection. Refrigerated: 2 hours (plasma removed from the cells immediately following centrifugation) Frozen: 24 hours (plasma removed from cells immediately following centrifugation)
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimen not received on ice will be rejected. Samples with gross hemolysis.
Methodology
Enzymatic
Setup Schedule
Sunday-Saturday
Reference Range
0-15 days: ≤105 µmol/L
16 days - 1 year: ≤80 µmol/L
1 year - 20 years: ≤65 µmol/L
20-80 years: ≤70 µmol/L
>80 years: ≤55 µmol/L
16 days - 1 year: ≤80 µmol/L
1 year - 20 years: ≤65 µmol/L
20-80 years: ≤70 µmol/L
>80 years: ≤55 µmol/L
Performing Laboratory
West Virginia University Hospital, Inc.
