Test Name: Bactrim 
Alternate Test Names Sulphamethoxazole; Trimethoprim 
PLS Test Code SMXT  Laboratory Biochemistry 
Specimen Blood  Analysis Performed On Serum 
Container Serum Separator Tube (SST)  Container colour White 
Multiple specimens OR Lithium Heparin Gel Tube 
Required Volume Adult (mL) Req Vol Paediatric (mL)
Reference Ranges Sulphamethoxazole: < 100 ug/mL. Trimethoprim: < 10 ug/mL. 
Turnaround Time Routine 3 Days  Turnaround Time Urgent  
Turnaround Other  
Days test is performed By request  Transport Room temperature 
Special Requirements Trough level - collect at least 6-8 hours after last dose. Do NOT freeze either blood or separated serum. 
Patient Preparation None 
Collection Instructions Venepuncture. Date, time and dose of last dose must be written on Request Form.. 
Clinical Information  
Sent to Reference Laboratory No 
Ref Laboratory Name  
Estimated Patient Fee N/A 
Last Updated 25-Aug-2006 (Version: 1.00)