laboratory diagnostic - drugs - Tenofovir, EDTA Plasma centrifuged immediately 3ml. The plasma must be frozen within 4 hour after collection and must be sent in the frozen samples container(!) sample at T0 (before intake). T1H and T3H (after intake); It is IMPERATIVE to attach the completed clinical information form, supplied upon request. HPLC/DAD-F, ssso, todylaboratories®, bmn, code L16LD1507