A blood glucose meter having a test strip port and an adjustable lancet device disposed at the same end of the device body is disclosed. The device body further includes an enclosure at the proximal end of the device body which houses a test strip storage vial and which facilitates one-handed opening and closing of the vial to simplify access to test strips contained therein. The enclosure is further provided with a window which allows the reading of the lot numbers on the label of the test strip vial therein without necessitating removal of the vial. A data connector is also provided on the device body for communication access, such as to upload data from other devices or to download data to other devices. By combining these multiple components into a single device body, the blood glucose meter requires fewer steps for sampling and testing, and makes device use easier and more convenient.