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Old 11-30-2014
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Default why resp. alk in COPD

In COPD there is tachypnea so there should be resp. Alkalosis with decrease pco2. But mtb says resp. Acidosis with increase pcoc.
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Old 11-30-2014
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COPD is an obstructive disease.you can't get rid of co2 and hence respiratory acidosis. Tachypnea in copd is shallow breathing in dead space..you can't exchange gases in dead space!

Last edited by beenishsk86; 11-30-2014 at 08:42 PM. Reason: missed a word
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Old 12-01-2014
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Quote:
Originally Posted by medicalbiology View Post
In COPD there is tachypnea so there should be resp. Alkalosis with decrease pco2. But mtb says resp. Acidosis with increase pcoc.
COPD , air way collapse on expiration, CO-2 can't get out,(hence increased lung volumes)
they are Chronic Co2 retainers,& their respiratory drives (which normaly is driven by co2 level) switches from Co2 to O2 level
,that is why Goal of therapy is to keep o2 88--92 %..
giving them high oxygen will stop resp drive..

& they breath with Purse lips to get Air out slowly

restrictive Lung disease people, have increase lung recoil & work of Breath so they breath ,small & rapid & shallow, so i think they should be alklotic (not sure)
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