Test Name: Ammonia
Health Link Test Code: GM2200
LIS Test Code: NH3
CPT Code(s): 82140
Methodology: Glutamate Dehydrogenase
Days Performed: Daily, 24 hours.
Stat In-Lab Turnaround Time: 1 hour.
Collection Container: Green top
Also Acceptable: Green cap with yellow ring (PST)
Fill tube completely.
Collection Volume: 4 mL
Pediatric Collection Volume: 1 mL
Sample Analyzed: Plasma
Testing Volume: 0.5 mL
Pediatric Testing Volume: 0.2 mL
Centrifuge with cap in place. Redraw specimen if hemolysis is present. Transfer cell-free plasma to plastic vial. Freeze specimen.
Transport specimen to laboratory immediately. Whole blood specimen must arrive in the laboratory within 30 minutes of collection if not on ice pack. If in question, transport on ice pack. Transport frozen plasma on dry ice if coming from clinic location.
Hemolyzed specimens are not acceptable. Ice packed specimens greater than 60 minutes old or specimens not on ice pack greater than 30 minutes old when received by laboratory are not acceptable.
|15 days-5 years||16-68|
|6 years and up||<72|
Interpretation Type: Reference Interval
Critical Calls: yes