National Physical Therapy Examination (NPTE) Practice Exam

If a patient demonstrates an increase in heart rate of 25 beats/min during exercise, what should the physical therapist assistant consider?

1. Normal reaction to exercise

2. Possible cardiovascular distress

3. Dehydration

4. Fatigue

The correct answer is: Possible cardiovascular distress

An increase in heart rate during exercise is a typical response as the body requires more oxygen-rich blood to be delivered to the working muscles. However, a significant increase of 25 beats per minute can indicate that the patient's cardiovascular system may be responding improperly to the demands of exercise. The normal physiological response usually involves a heart rate increase that aligns with the intensity of the activity performed. An exaggerated response, especially if it occurs alongside other symptoms, might suggest possible cardiovascular distress, which needs to be monitored closely. This is particularly crucial for patients with existing cardiovascular conditions or risk factors, as they might not tolerate exertion as well as others. It’s vital for healthcare professionals to assess whether the increased heart rate is appropriate based on the patient’s baseline and the intensity of the exercise being performed. If it appears excessive or is accompanied by other symptoms such as chest pain, dizziness, or shortness of breath, it may warrant further investigation to ensure the patient's safety.