An apparatus comprising a reagent atomization and delivery system. In one embodiment, a reagent atomization and delivery system includes an atomizer that uniformly and simultaneously delivers a spray of atomized reagent toward a plurality of reagent receiving sites on a specimen plate. The reagent atomization and delivery system is advantageously used in conjunction with an imaging system (e.g., visible-spectrum, infrared-spectrum, etc.). Specifically, once the atomized reagent is dispensed, it triggers chemical/physiological reactions that are then advantageously subjected to imaging analysis (e.g., visible-spectrum imaging, infrared spectrum imaging, etc.).