Which of the following is the most important first step in the diagnostic and treatment process?

Option A: A through history and physical examination
Option B: Blood Work
Option C: Urinalysis
Option D: Electrocardiogram
Option E: Radiographic Imaging
Option F: Invasive Procedures


The answer is a. A thorough history and physical examination is the core of the diagnostic and treatment process. Any further assessment with blood work and the other tests listed must be integrated with the initial information compiled in the history and physical examination. The H&P is always the most important first step in any diagnostic and treatment process.