Which of the following statements is true about prone positioning of patients with ARDS?
a. May be beneficial to patients with sus-tained severe ARDS (P/F ratio < 150 for more than 12 to 24 hr on stable ventilator settings).
b. It dramatically reduces the mortality of patients with ARDS.
c. It is easy to do and helps morbidity rates of patients with ARDS.
d. It does not improve gas exchange at all.
ANS: A
However, as more centers gain comfort with the logistics of rotating patients, prone position ven-tilation has emerged as one of the first-line adjunctive therapies available to assist in oxygenating the severe ARDS patient, and is considered by many to now be the standard of care for patients with sustained severe ARDS (P/F ratio < 150 for more than 12 to 24 hr on stable ventilator set-tings).
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