Abstract: The present invention recognizes that there is a need for a single-step, pain-free or substantially pain-free device to test the levels of an analyte in one's blood such as glucose. The invention incorporates a lancet and a glucose test strip into a disposable cartridge. The user inserts the cartridge into the port of the device to turn it on. The base vibrates to quench or reduce pain from a lancet puncture. The test strip is exposed to the blood sample at the site of the lancet puncture which is analyzed by the device.