Doctors are human and humans are prone to commit mistakes. That is why hospitals adopt multiple redundancies to ensure that every error is caught before it develops into a grave or fatal condition. For example, pulmonary embolisms are caused by blood clots, pockets of air or other substances that block the pulmonary arteries which feed blood into the lungs. If a pulmonary embolism goes untreated or undiagnosed, it can and often does become fatal. This post will go over how you may recover for a misdiagnosed pulmonary embolism ("PE").