Final answer:
The examination is the objective-portion of the E/M service, which includes observing and testing the patient to gather data about their health status. The prodromal period is when a patient begins showing general signs and symptoms of a disease.
Step-by-step explanation:
The examination is the objective-portion of the E/M (Evaluation and Management) service. During the examination, healthcare providers observe and perform tests to gather observable and measurable information about the patient’s health status. It involves a clinical evaluation and physical examination to collect data on the patient's current health.
Regarding the stage of disease during which the patient begins to present general signs and symptoms, it is commonly referred to as the prodromal period. This is the time after the incubation period and before the characteristic symptoms appear.