Test Name: Ammonia 
Alternate Test Names Ammonium; NH3 
PLS Test Code NH3  Laboratory Biochemistry 
Specimen Blood  Analysis Performed On Plasma 
Container Lithium Heparin Tube  Container colour Green 
Multiple specimens EDTA Tube 
Required Volume Adult (mL) Req Vol Paediatric (mL)
Reference Ranges Adult: 18 - 72 umol/L, Neonate (1-90days): 42 - 144 umol/L, Child (3-11months): 34 - 133 umol/L. 
Turnaround Time Routine 24 Hours  Turnaround Time Urgent  
Turnaround Other Contact laboratory if urgent testing required 
Days test is performed Daily  Transport  
Special Requirements Place specimen on ice and deliver IMMEDIATELY to laboratory WITHIN 15 minutes of collection. 
Patient Preparation None 
Collection Instructions Venepuncture. 
Clinical Information  
Sent to Reference Laboratory No 
Ref Laboratory Name  
Estimated Patient Fee N/A 
Last Updated 25-Aug-2006 (Version: 1.00)