Red top or Green top (sodium or lithium heparin) tube DO NOT USE SST/PST TUBE
1.0 mL heparinized plasma or serum
0.25 mL heparinized plasma or serum
Collect blood in a red or green top tube; do not use SST/PST tube. Centrifuge, aliquot serum or plasma into plastic vial and refrigerate.
Collect blood in a red or green top tube; do not use SST/PST tube. Centrifuge, aliquot serum or plasma into plastic vial and refrigerate.
Monday - Friday
4 - 8 days
Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
Encainide: 15 - 100 ng/mL; O-desmethylencainide (ODE): 100 - 300 ng/mL; 3-methoxy-ode (MODE): 60 - 300 ng/mL. Ten percent of patients do not form therapeutic levels of the active metabolites MODE and ODE. In these patients, the recommended range for encainide is 300 - 1,200 ng/mL.
Therapeutic drug monitoring.
Test sent to Mayo Medical Laboratories; performed by MedTox Laboratories.
Z328-5
80299
20042
SST or PST tube not acceptable.
Refrigerated preferred, frozen acceptable