The movement must always be repeated until the liquid appears uniformly white and cloudy • After resuspending, complete all of the following stages of injection without delay • Disinfect the rubber membrane with a medicinal swab • Always use a new needle for each injection to prevent contamination • Remove the protective tab from a NovoFine needle • Screw the needle straight and tightly onto Mixtard 10 NovoLet (picture B) • Pull off the big outer needle cap and the inner needle cap.