Which term refers to data gathered through diagnostic tests and measurements?

• A. Objective data
• B. Subjective data
• C. Chief complaint
• D. Assessment

Answer: (A)

Data gathered through diagnostic tests and measurements are objective data. This type of information is observable and measurable and can be verified by another clinician—for example, temperature, blood pressure, pulse, lab results, or imaging findings. In contrast, subjective data come from what the patient reports, such as pain level, dizziness, or fatigue. The chief complaint is the patient’s stated reason for seeking care, which is also subjective. The assessment is the clinician’s synthesis of all data (objective and subjective) to guide the plan.