1. A system for measuring hemoglobin concentration in a whole blood sample within a short period of time after drawing said whole blood sample from a patient or subject, comprising: a containment apparatus having a substantially hollow interior defined by a plurality of sidewalls that are light impenetrable, said plurality of sidewalls including left and right sidewalls, a bottom sidewall, a top sidewall that is removable or openable to provide access into said substantially hollow interior of said containment apparatus from a top side of said containment apparatus, a front sidewall, and a rear sidewall or frame that is structured to receive an electronic mobile device having a camera function; a cuvette stand disposed on said front sidewall within said interior of said containment apparatus, said cuvette stand configured to receive and hold a cuvette containing said whole blood sample in a position directly opposite from a camera lens of said mobile device; a flash dispersing flange positioned along said rear sidewall corresponding to a flash of said camera function of said mobile device in order to scatter any light from said flash, wherein said mobile device includes a non-transitory computer medium that contains computer-executable instructions which when executed by a processor causes the processor causes the processor to perform the step of receiving an image of said whole blood sample from said camera function of said mobile device, detecting a color of a separated plasma component within said whole blood sample, and automatically determining a hemoglobin concentration and a hemolysis level in said whole blood sample based on said detected color of said plasma component, wherein when said top sidewall is closed and said mobile device is inserted into said rear sidewall, external light cannot penetrate into said substantially hollow interior of said containment apparatus.