How would you deal with a patient who needed a test such as this but wanted to refuse due to the risks involved?

How would you deal with a patient who needed a test such as this but wanted to refuse due to the risks involved?

References:

American College of Sports Medicine. (2014). ACSM’s guidelines for exercise testing and prescription (9th ed.). Baltimore, MD: Lippincott Williams & Wilkins

 

Resnik, D. (2009). Do informed consent documents matter? US National Library of Medicine, 30 (2), 114-115.