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39:, i.e. return to normal breathing. The weaning process depends closely on the patient's pathology, but the final common pathway to ventilator independence always includes at least one trial of spontaneous breathing. Trials of spontaneous breathing have been shown to accurately predict the success of spontaneous breathing.
98:(Tobin Index) of less than or equal to 105. The RSBI ("Riz-bee") is simply the ratio of respiratory frequency in respirations per minute to tidal volume in liters (f/V
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Yang K, Tobin MJ, A prospective study of indexes predicting the outcome of weaning from mechanical ventilation. N Engl J Med 1991;324:1445-1450
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Briefly move the tubing supply from the ventilator to continuous supply oxygen ("wall oxygen")
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In all of the methods below, the common endpoint measurement is a
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Reduce continuous positive airway pressure to 5 cm water
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e.g., ratio of arterial partial pressure of oxygen to F
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