What is a primary purpose of performing tests and measures in physical therapy?

• A. Replace clinical reasoning
• B. Confirm diagnosis
• C. Eliminate baseline data
• D. Predict exact recovery time

Answer: (B)

Tests and measures in physical therapy are used to collect objective data that confirm the clinician's working diagnosis and guide the plan of care. By quantifying impairments such as strength, range of motion, pain, and functional ability, the therapist verifies that the patient’s presentation aligns with a specific problem and that the chosen interventions target the right tissue or system. This objective information supports clinical reasoning and helps track progress over time, while not replacing the clinician’s judgment or dictating an exact recovery timeline. Hence, the primary purpose is to confirm the diagnosis and tailor the care plan accordingly.