Final answer:
PE stands for Pulmonary Embolism.
Step-by-step explanation:
In the medical field, the abbreviation PE stands for Pulmonary Embolism. A pulmonary embolism is a blockage in one of the pulmonary arteries in the lungs, usually caused by a blood clot that has traveled from elsewhere in the body. This condition can be life-threatening and requires prompt medical intervention.