Exam 47: Discontinuing Ventilatory Support

What patients are at high risk for postextubation upper airway obstruction? I.those with neuromuscular disorders II.those who have had major neck surgery III.those with infectious masses or abscesses

All of the following indicate that an adult patient is ready to be weaned from ventilatory support except:

In most weaning protocols, what minimum blood gas parameters are needed to start the process?

Which of the following techniques can help to decrease a patient's imposed work of breathing during weaning from ventilatory support? I.use of pressure-supported ventilation (PSV)II.trigger breath by flow, not pressure III.application of small amounts of continuous positive airway pressure (CPAP) or positive end-expiratory pressure (PEEP)IV.use of automatic tube compensation (ATC)

What is the best way to decrease the work of breathing imposed by an artificial airway on a patient receiving ventilatory support?

Advantages of noninvasive positive-pressure ventilation include all of the following except it:

Treatment options for severe postextubation stridor include all of the following except:

Limitations of noninvasive positive-pressure ventilation include all of the following except it:

All of the following oxygenation measures support a patient's readiness to wean except:

All of the following indicate that a patient's renal function is adequate for weaning except:

With most ventilators that provide mandatory minute ventilation, what happens if the patient's minute ventilation falls below the preset level?

All of the following factors can reduce a patient's ventilatory drive except:

A physician is using a pressure support protocol to wean a patient off ventilatory support. The patient is now at a 5 cm H₂O pressure level and has a spontaneous respiratory rate of 21/min. Other cardiovascular and respiratory signs indicate that the patient remains stable. Which of the following actions would you recommend at this point?

While monitoring a patient during a T-tube weaning trial, you notice the following: increased patient agitation; increased heart rate (from 90 to 118/min); increased respiratory rate (from 17 to 33/min with some paradoxical motion); and premature ventricular contractions (PVCs) increasing to an average of 5/min. Which of the following actions would be appropriate at this time?

A patient receiving ventilator support has a spontaneous rate of breathing of 26/min and an average V_T of 300 ml. What is this patient's rapid-shallow breathing index?

Prerequisites for successful weaning include: I.psychological readiness II.adequate gag and swallow reflexes III.ability to follow instructions IV.adequate cough

All of the following are advantages of using pressure-supported ventilation for weaning except:

Which of the following cardiovascular signs would indicate that a patient's cardiovascular status is unstable and that weaning should NOT begin at this time?

All of the following are useful strategies in managing the psychological problems encountered in weaning some patients from ventilator support except to:

What are some advantages of mandatory minute ventilation (MMV) as a weaning tool? I. It provides greater control over PaCO₂ than intermittent mandatory ventilation does. II. It prevents acidemia with acute hypoventilation. III. It eliminates concerns over depressant drugs. IV. It ensures an efficient pattern of ventilation.