The present application relates to an apparatus for eliciting a blood sample. The apparatus has a housing having an aperture (105). A shaft (204) extends in the housing and a testing member (701) is mounted on the shaft which rotates with the shaft. A lancing member (718) is pivotably mounted to the testing member and a lancet (309) protrudes from the lancing member. The lancing member is arranged to pivot relative to the testing member from a retracted position to a skin penetrating position in which the lancet extends into or through the aperture when the testing member is rotated so that the lancing member is coincident with the aperture.