Physical Therapy Assistant Practice Exam

Which factor is least likely to influence blood pressure during a physical therapy session?

1. Fluid intake

2. Intensity of exercise

3. Patient's age

4. Body temperature

The correct answer is: Body temperature

The least likely factor to influence blood pressure during a physical therapy session is body temperature. While body temperature can have some physiological effects on the body, such as affecting metabolic rates and vasodilation, its immediate impact on blood pressure is generally less pronounced compared to the other factors listed. Fluid intake can directly affect blood volume, thereby influencing blood pressure levels during physical activity. The intensity of exercise is a well-documented factor that can cause significant changes in blood pressure; as exercise intensity increases, blood pressure typically rises to meet the metabolic demands of the muscles. The patient's age is another critical consideration, as it can correlate with cardiovascular health, arterial compliance, and overall physiological response to exercise, impacting blood pressure. In contrast, while body temperature may play a role in overall bodily functions, its effect on blood pressure during a therapy session is not as direct or significant compared to the more immediate influences of exercise intensity and fluid status.