A patient was admitted to the critical care unit with acute respiratory failure.The patient has been on a ventilator for 3 days and is being considered for weaning.Which criteria would indicate that the patient is not tolerating weaning?

Question

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Weaning intolerance indicators include (1)a decrease in level of consciousness; (2)a systolic blood pressure increased or decreased by 20 mm Hg; (3)a diastolic blood pressure greater than 100 mm Hg; (4)a heart rate increased by 20 beats/min; (5)premature ventricular contractions greater than 6/min,couplets,or runs of ventricular tachycardia; (6)changes in ST segment (usually elevation); (7)a respiratory rate greater than 30 breaths/min or less than 10 breaths/min; (8)a respiratory rate increased by 10 breaths/min; (9)a spontaneous tidal volume less than 250 mL; (10)a PaCO₂ increased by 5 to 8 mm Hg or pH less than 7.30; (11)an SpO₂ less than 90%; (12)use of accessory muscles of ventilation; (13)complaints of dyspnea,fatigue,or pain; (14)paradoxical chest wall motion or chest abdominal asynchrony; (15)diaphoresis; and (16)severe agitation or anxiety unrelieved with reassurance.

A Patient Was Admitted to the Critical Care Unit with Acute