Advanced Trauma Life Support (ATLS) Practice Exam

In the MSK (musculoskeletal) motor exam, the primary elements that should be compared between both sides of the body are strength and range of motion. An assessment of strength involves evaluating how much force a muscle or group of muscles can produce, which is crucial in identifying any discrepancies that might indicate underlying issues such as neuromuscular disorders, injuries, or conditions affecting the nervous system.

Range of motion assessment involves checking how far a joint can move in different directions. This helps in understanding whether there is any limitation in mobility, which could be due to joint problems, stiffness, or pain that could affect functional capacity. Comparing these two aspects allows for an effective examination of the musculoskeletal system's integrity and functionality.

While visual appearance, pain responses, and temperature differences can provide some information regarding a patient's condition, they are not as definitive or critical as strength and range of motion when conducting a thorough and focused musculoskeletal examination. Therefore, strength and range of motion are vital components for a comprehensive assessment of the musculoskeletal system.