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draditithegreatSend an Instant Message to draditithegreat  




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Quick Scroll Physiology :dead space? 07.11.05 (3 years ago) #1
The physiologic dead space is decreased by:
1. Upright position.
2. Positive pressure ventilation.
3. Neck flexion.
4. Emphysema.? icon_eek.gif icon_eek.gif icon_eek.gif icon_eek.gif
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Quick Scroll 07.11.05 (3 years ago) #2
i think its pos pr ventilation, coz when we give +ve pr it opens up the collapsed alveoli and improves ventilation.
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Quick Scroll 07.11.05 (3 years ago) #3
discussed earlier...answer's neck flexion
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Quick Scroll 07.12.05 (3 years ago) #4
can u pls give explanation or the post....
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Quick Scroll 07.12.05 (3 years ago) #5
i mean the post where it was discussed....
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Quick Scroll 07.12.05 (3 years ago) #6
neck flexion decreases anantomical dead space.

IPPV increases alveolar dead space by increasing ventilation in poorly perfused areas

ref:lee's 12th ed pg 251 and dorland's 28th ed pg 1548

also see,
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Quick Scroll 07.12.05 (3 years ago) #7
icon_lol.gif icon_lol.gif icon_lol.gif thanx a lot aqua........ icon_lol.gif icon_lol.gif icon_lol.gif
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Quick Scroll 07.12.05 (3 years ago) #8
My pleasure:)
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