3 mL plain blood in red top tube (no gel)
Blood sample should be taken just before the next dose for assessment of trough level.
High Performance Liquid Chromatography
1.0 - 5.0 mg/L Trough levels of >1.0 mg/L are associated with treatment success. (Antimicrob Chemother 2014; 69(5): 1162 - 1176)
Mean = 3 days, Range: 2 - 5 days
Tuesday and Friday
Patient Preparation:Patient should abstain from the following at least 3 days prior to and during blood sample collection:- where medically possible, drugs such as Levofloxacin, Valsartan, Clindamycin, Fosamprenavir, Pyrimethamine, Piperacillin, Sulfamethoxazole, Tazobactam, Trimethoprim and Flecainide
The list of drugs have been selected on the basis of potential significance to test measurement and are not necessarily all-inclusive.
Please contact the Clinical Biochemistry Laboratory for assistance if necessary.