Which of the following is not a contraindication for stress testing?

Stable angina is not considered a contraindication for stress testing. In fact, patients with stable angina can often safely undergo stress testing as it may help assess their functional capacity, determine the severity of their coronary artery disease, and guide further management. The goal is to evaluate how their heart responds to increased activity, potentially detecting significant ischemia during exertion.

Stress testing in patients with stable angina is typically performed with appropriate precautions and under controlled conditions, ensuring that medical personnel are available to manage any potential complications. This is in contrast to the other options listed, which involve serious clinical conditions that could be exacerbated by the stress of physical or pharmacologic testing.