Final answer:
The objective portion of a medical exam encompasses the data collected directly from the patient, the findings of the physical examination, and any additional diagnostic tests performed.
Step-by-step explanation:
The objective portion of a medical exam is best defined as the part of the exam that includes information gathered directly from the patient, the physical exam, and any diagnostic workup performed. This does not include the reason for the visit or the history taken, which are part of the subjective portion of the exam, nor does it include the conclusions, diagnosis, treatment, or recommended diagnostics, as these are parts of the assessment and plan. The objective portion is about collecting factual data through observation, measurement, and testing, which can then inform possible conclusions and treatment plans.