Which of the following are signs of potential complications during exercise testing?

Signs of potential complications during exercise testing are critical to identify for the safety and well-being of the individual undergoing the test. Chest pain, dizziness, and shortness of breath are particularly concerning because they may indicate serious underlying cardiovascular or respiratory issues that could lead to a more severe event, such as a heart attack or other complications.

Chest pain may indicate ischemia or a lack of blood flow to the heart, while dizziness can suggest inadequate blood flow to the brain, potentially due to hypotension or arrhythmias. Shortness of breath is a key symptom of various cardiovascular and pulmonary conditions, and can signal that the body is struggling to meet the increased demands of exercise. Given the seriousness of these symptoms, they warrant immediate attention and could necessitate halting the exercise testing to ensure the individual's safety.

In contrast, soreness and fatigue, muscle cramping, and increased flexibility are typically not indicative of immediate or serious complications related to exercise testing. These symptoms may arise as a normal response to physical activity, especially if the individual is not accustomed to the exercise or has not properly hydrated or warmed up.