Abstract: Hand-held shirt-pocket portable glucose medical monitoring system for checking measurement of blood glucose or other body qualities. The system includes a disposable diagnostic reagent-lancet unit which carries a chemcial reagent strip of blood reacting chemistry. The system includes a housing structure having a visual LCD readout, a microprocessor, and photosensing circuitry which measures the change of color of the blood reacting chemistry of the disposable unit. The housing also includes a spring arrangement for actuating a lancet into the skin for sampling and transporting blood from a finger to a chemical reagent. The disposable unit includes medical and fluid configurations for transporting of the blood to the reagent strip. The system inlcudes verification and calibration sequences for the electronics, the chemistry of an unused disposable unit, the presence of a blood sample, and multiple readings to an average result. The system also provides for storing a plurality of readings.