Evaluating inborn errors of metabolism such as urea cycle disorders in neonates.
Assisting in diagnosis of liver failure or hepatic encephalopathy from advanced liver disease in adults.
Room Temperature: 30 min
Fridge: 2 hours @ 2-8°C
Freezer: 3 days @ -20°C
Roche cobas c 502, enzymatic
24 hours a day, 7 days a week
< 49 µmol/L
In case of discrepancies, always interpret results using reference ranges as stated on laboratory reports and/or electronic patient chart.
416-586-4800 extension 4688
Patient should be fasting and avoid smoking prior to collection.