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Point of Care Testing
Pathology Lab Manual
All Site Content
2 mL Whole blood on ice
Volume and Container
4 mL Green-top sodium heparin tube.
Storage and Transport
Put on ice, transport immediately.
Low: <= 8.0 micromole/L;
High: >= 80 micromole/L
Causes for Rejection
Wrong container; hemolysis; not transported on ice;
specimen not received within one hour; improper labeling; insufficient quantity
Turn Around Time
Urgent/Emergent: 1 hr.
CPT / HCPCS Code
Liver function, hepatic encephalopathy, Reye's syndrome
Core Laboratory, BI-2023, 706-721-2120
Frequently Requested Tests requisition. Indicate medical necessity.
Limitations and Contraindications
Should be analyzed as quickly as possible. Concentrations increase rapidly on standing.
CPOE Test Name
NH3 or Ammonia
Created at 9/8/2014 5:56 PM by Bradshaw, Keir
Last modified at 9/8/2014 5:56 PM by Bradshaw, Keir
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