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Gas embolism is a diving disorder experienced by underwater divers who breathe gases at ambient pressure, and can happen in two distinct ways: . Pulmonary barotrauma: Air bubbles can enter the bloodstream as a result of gross trauma to the lining of the lung following a rapid ascent while holding the breath; the air held within the lung expands to the point where the tissues tear (pulmonary ...
Drip chambers at the bottom of each of two IV bags. A drip chamber, also known as drip bulb, is a device used to allow gas (such as air) to rise out from a fluid so that it is not passed downstream. It is commonly employed in delivery systems of intravenous therapy and acts to prevent air embolism. [1] [2]
An air embolism, on the other hand, is usually always caused by exogenic factors. This can be the rupture of alveoli , and inhaled air can be leaked into the blood vessels. Other more-common causes include the puncture of the subclavian vein by accident or during operation where there is negative pressure.
An embolism is the lodging of an embolus, a blockage-causing piece of material, inside a blood vessel. [1] The embolus may be a blood clot ( thrombus ), a fat globule ( fat embolism ), a bubble of air or other gas ( gas embolism ), amniotic fluid ( amniotic fluid embolism ), or foreign material .
If the compressed air in a diver's lungs cannot freely escape during an ascent, particularly a rapid one, then the lung tissues may rupture, causing pulmonary barotrauma (PBT). The air may then enter the arterial circulation producing arterial gas embolism (AGE), with effects similar to severe decompression sickness. [7]
A US Air Force study reports that there are few occurrences between 5,500 m (18,000 ft) and 7,500 m (24,600 ft) and 87% of incidents occurred at or above 7,500 m (24,600 ft). [ 32 ] High-altitude parachutists may reduce the risk of altitude DCS if they flush nitrogen from the body by pre-breathing pure oxygen . [ 33 ]
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Infection, phlebitis, extravasation, infiltration, air embolism, hemorrhage (bleeding) and formation of a hematoma (bruise) may occur. A catheter embolism may occur when a small part of the cannula breaks off and flows into the vascular system. When removing a peripheral IV cannula, the tip should be inspected to ensure it's intact. [5]