A system and method is provided for health management, for performing a parameter measurement in a fluid sample, including a mobile communications device with an application adapted to perform health management for one or more health related conditions; a strip adapted to absorb a fluid sample and to produce a signal indicative of the parameter level in the sample; and a fluid testing apparatus for obtaining an analog measurement of the fluid parameter, the fluid testing apparatus including an adaptor adapted to connect the strip to the mobile communications device to thereby allow delivery of the produced signal or a correlated signal to the mobile communications device for obtaining a measurement of the fluid parameter displayed on the mobile communications device, wherein the fluid testing apparatus relies on the mobile communications device for at least one of power supply and display means, and wherein the system includes a power level adjustment means associated with the device audio jack and/or the adaptor, for providing a suitable power output to operate the fluid testing apparatus.