Physical Therapy Assistant Practice Exam 2025 - Free PTA Practice Questions and Study Guide

The largest allowable job demand for a patient safely returning to work after a cardiac event is established as 50% of peak METs achieved. This standard originates from the need to ensure that patients can handle the physical demands of their job without undue risk, especially in the context of cardiovascular recovery.

METs, or metabolic equivalents, are used to quantify the energy expenditure of an activity relative to resting metabolic rates. After a cardiac event, a patient’s activity level should be gradually increased, and this guideline suggests that returning to work should not exceed half of what they demonstrated as their peak capacity. This conservative approach helps to minimize the risk of overexertion, which could lead to further health complications.

In emphasizing patient safety and recovery, the objective is to allow for functional performance that is challenging but manageable. Working at a threshold of 50% ensures that patients are building their endurance and strength without overwhelming their cardiovascular system as it continues to heal and adapt post-event. This practice aligns with the principles of gradual progression in rehabilitation and the importance of monitoring patient responses to increased activity levels.