Purple top (EDTA) tube
0.4 mL (minimum 0.2 mL)
Cause for rejection:
Hemolysis, icterus, lipemia, not delivered on ice
Refrigerated; Frozen if specimen can't be run immediately
Daily, 24 hours; STAT
Enzymatic, with glutamate dehydrogenase
Venipuncture only! Place specimen on ice and deliver to lab immediately.
If ordered with a CBC please collect a separate specimen for the Ammonia.
For Outpatients, test should only be drawn in outpatient locations within the Hospital on the Beeghly campus.
Reference range is on patient report