The present invention relates generally to finger-pricking devices for extracting capillary whole blood for in-vitro diagnostic testing. More particularly, the present invention relates to devices that prick fingers, collect and dispense capillary whole blood on a test media for the purpose of carrying out in-vitro diagnostic (IVD) testing. In the preferred embodiment, the blood collection means is a measurement and collection tube. The incorporated blood measurement and collection tube enables a user single-handedly to prick his finger with safety lancet, milk the lanced site to obtain a desirable size of blood droplet, and collect and measure at the same time the desired volume of blood with the present invention. The user may estimate the blood volume collected in the tube by seeing the blood columns movement relative to the graduation scale on the device, and he may stop the collection process by separating the tube from the blood. Alternatively, the capillary tube may be made to have a predetermined capacity to only collect the predetermined amount of blood sample for a particular IVD test. This is particularly crucial for advanced point-of-care testing systems which provide quantitative and high accuracy results. Result accuracy often requires that the blood sample by filling up the predetermined capacity. Lastly, the user may dispense the collected blood onto a test media by making physical contact between the tubes opening and the test media.La présente invention concerne de manière générale des dispositifs de piqûre de doigt pour prélever du sang total capillaire en vue dune analyse diagnostique in vitro. Plus particulièrement, la présente invention concerne des dispositifs qui piquent le doigt, prélèvent et distribuent du sang total capillaire sur un milieu danalyse afin dexécuter une analyse diagnostic in vitro (IVD). Dans le mode de réalisation préféré, le moyen utilisé pour prélever le sang est un tube de mesure et collecteur. Le tube de mesure et colle