i_speak_softly: (Phew I'm okay)
i_speak_softly ([personal profile] i_speak_softly) wrote 2011-05-07 04:55 pm (UTC)

i don't know /quits pretending to be organized

[He swears you're also part-bloodhound.]

[Don hands Mike the book he nearly just dropped off the building.]


Decompression sickness (DCS) is due to the formation of inert gas bubbles in tissues and/or blood due to supersaturation, where either the mechanical stresses caused by bubbles or their secondary cellular effects cause organ dysfunction. DCS can be caused by a reduction in ambient pressure during ascent from a dive, rapid altitude excursion, in space or a hyperbaric/hypobaric chamber. Bubble formation occurs when decompression occurs sufficiently fast that tissue inert gas partial pressure exceeds ambient pressure, causing supersaturation and bubble formation. The resulting clinical manifestations include joint pains, cutaneous eruptions or rashes, neurological dysfunction, cardiorespiratory symptoms and pulmonary edema, shock and death. Several mechanisms have been hypothesized by which bubbles may exert their deleterious effects. These include direct mechanical disruption of tissue, occlusion of blood flow, platelet deposition and activation of the coagulation cascade, endothelial dysfunction and capillary leakage, complement activation and leukocyte-endothelial interaction.

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