What is Pulmonary Embolus?

The word pulmonary stands for lungs and embolus means blood clot that travels, so Pulmonary Embolus (PE, for short) is a medical condition where clots "swim" in the blood stream towards the lungs, are "filtered" and caught in the pulmonary artery (the main artery of the lungs), causing obstruction of blood flow into the lungs, resulting in hypoxia (diminished oxygen blood level). Pulmonary embolus is a serious condition which could be fatal, if not detected and treated promptly. What are the signs and symptoms of PE?

The clinical symptoms are usually nonspecific, depending on the severity of the pulmonary artery blockage. There could be chest pains, cough, shortness of breath, tachypnea (fast and shallow breathing), hemoptysis (spitting of blood) lightheadedness, fainting, occasionally with lung wheezing, anxiety and restlessness, and even a sense of impeding doom. Frequently, these patients are asymptomatic (with no symptoms at all).

Many times, only a high index of suspicion on the ...

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