Stanford Hospital & Clinics and Lucile Packard Children’s Hospital
RESULT
Test Name : Ammonia, Plasma Order Code : NH3
Specimen Type: Plasma
Container Type: Lavender-top tube (EDTA)
Required Volume: 1 mL whole blood
Minimum Volume (Pediatric): 0.6 mL (1 full microtainer) whole blood
Methodology: Enzymatic
Standard Run Times: 24 hours/7 days a week
Turnaround Time: 24 hours/next day
Special Handling: No tourniquet should be used. Specimens that will be received in the Lab within 20 minutes may be transported on ice. If transport time is greater than 20 minutes, spin, separate and freeze plasma immediately. Transport frozen.
CPT Codes: 82140
LPCH EPIC Code: LAB47
SHC EPIC Code: LABNH3
Causes For Rejection: Specimens received at room temperature. Unfrozen specimens received 20 minutes or more after collection. Capillary specimens (heelsticks, fingersticks). Specimens received in a tube type other than EDTA.
Department: Chemistry