Accessory for colorimetric diagnostics and related systems and methods

A method for performing a diagnostic test, the method comprising:

• receiving, by a nucleic acid amplification molecular diagnostic device, an indication from an external device to turn on a heater of the nucleic acid amplification molecular diagnostic device;
• turning on, by the nucleic acid amplification molecular diagnostic device, the heater of the nucleic acid amplification molecular diagnostic device;
• receiving, by the nucleic acid amplification molecular diagnostic device from the external device, an indication to turn off the heater of the nucleic acid amplification molecular diagnostic device;
• and
• turning off, by the nucleic acid amplification molecular diagnostic device, the heater of the nucleic acid amplification molecular diagnostic device.

A method for performing a diagnostic test, the method comprising:

• controlling, by an external device, a heating element of reusable component of a nucleic acid amplification molecular diagnostic device to heat a fluid in a sample chamber of a disposable component of the nucleic acid amplification molecular diagnostic device;
• providing, by the external device, light to the nucleic acid amplification molecular diagnostic device for illuminating the fluid in the sample chamber;
• and
• detecting, with a camera of the external device, a change in color of the fluid, wherein the change in color is associated with the fluid comprising a particular pathogen.