From the pulmonary standpoint, supine positioning may be the worst possible position. Supine positioning may promote aspiration, as gravity tends to pull oral secretions towards the larynx. Supine positioning promotes atelectasis of the posterior lung segments (which are larger and more important than the anterior segments). Among obese patients, abdominal contents compress the diaphragm when supine, further promoting atelectasis. Finally, expectoration is difficult in a supine position, as the patient must expel secretions against gravity.
EMCrit by Josh Farkas.
from Emergency Medicine via xlomafota13 on Inoreader http://ift.tt/2coovGk
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