A 60-year-old man is being weaned from a ventilator in the ICU. The likelihood that weaning is going to fail is suggested by the presence of which of the following?

Question

Accepted Answer

A respiratory rate of 24 breaths/min

Answer

A PaO2 of 80 mm Hg on FiO2 of 40%

Answer

A vital capacity (VC) of 5 mL/kg body weight

Answer

A minute ventilation of 8 L/min

A 60-year-old man is being weaned from a ventilator in the ICU. The likelihood that weaning is going to fail is suggested by the presence of which of the following?

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