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Lung over-expansion injuries are most commonly found in Scuba diving accidents and normally occur as a result of holding your breath while ascending. The gas inside the lungs expands as the diver ascends and if the pressure is not released through exhaling then the lung can rupture. Depending on where the rupture occurs depends on the severity of the injury and it's classification. There are 4 main types (classifications) of lung over-expansion injuries...
- air embolism - Air entering the blood stream through the alveoli.
- mediastinal emphysema - Air escaping into the chest cavity and putting pressure on the heart as well as other organs.
- subcutaneous emphysema - Air trapped under the skin, normally collecting around the neck or collar bones.
- pneumothorax - Air entering the lung sack and collapsing a lung.
Symptoms may improve when the patient is treated with emergency oxygen on the dive boat but any lung over-expansion injury should be considered life threatening and will need to be treated in hospital.
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What is TRALI?
transfusion related acute lung injury
What was the downfall of the medieval city of Angkor?
Overexpansion.
When a lung collapses usually due to injury it is called what?
puncture
What is when lung collapses usually due to injury it is called?
pneumothorax
Which gas law best explains diving medical problems?
Boyle's Law explains the inverse relationship between pressure and volume, and therefore explains barotrauma such as middle air squeezes, sinus squeezes, and lung overexpansion injuries.
What happened to George III's eldest sons?
He died from a lung injury.
According to recent discoveries what was the downfall of the medieval city of Angkor?
Overexpansion
What condition would you assess for when dealing with a crushing injury?
Internal bleeding is the big concern with crushing injury. Severe internal bleeding of the abdomen can be palpated and feels like the abdomen is hard and rigid. Additionally, when there is crushing injury of the thorax, lung puncture or other pneumothorax(lung collapse) is also of great concern.
Incidence rate of lung injury from blood transfusion?
ehehehehe i dont know joke lang
Is it true that the great depression was cuased partly by overexpansion of credit and excessive comsumer debt?
Yes
A significant cause of the deppression that began in 1929 was that?
some banking policies were unsound and had led to the overexpansion of credit
What is difference between pneumothorax and atelectasis?
Atelectasis is a partial collapse of the lung caused by failure of the parenchymal (functional) lung tissue due to disease (i.e., COPD). Pneumothorax is the collapse of the lung due to mechanical causes (i.e., traumatic injury, violent coughing).
