Pulmonary Embolism (Blood Clot in the Lung) »
What is a pulmonary embolism?
The lungs are a pair of organs in the chest that are primarily responsible
for the exchange of oxygen and carbon dioxide between the air we breathe and blood. The lung is composed of clusters of small air sacs (alveoli) divided by
thin, elastic walls (membranes). Capillaries, the tiniest of blood vessels, run
within these membranes between the alveoli and allow blood and air to come near each
other. The distance between the air in the lungs and the blood in the
capillaries is very small, and allows molecules of oxygen and carbon dioxide to
transfer across the membranes.
The exchange of the air between the lungs and blood are through the arterial
and venous system. Arteries and veins both carry and move blood throughout the
body, but the process for each is very different.
- Arteries carry blood from the heart
to the body.
- Veins return blood from the body to the heart.
- The heart i...
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Our 27-year-old son just died of pulmonary edema and aspiration. He had had two previous episodes of pneumonia, both requiring stays in the ICU for five days each. The second time, they told him he had most likely had pneumonia for several days and he thought it was bad seasonal allergies. We knew his lungs and heart were compromised because of these previous episodes, so chest pains, followed by sweating, plus heavy snoring at night should have been a clue. However, when you are 27, you think you are invincible. He was wrong. Get checked out! Published: September 29 ::