Suppose a train sounding its horn is moving at 30.0 m/s in still air on a day when the speed of sound is 340.0 m/s. As the train passes the platform, on which you stand (moving away from you), you hear it with a frequency of 167 Hz. Which frequency does an observer on the train hear?

Immediately after insertion of an oral endotracheal tube on an adult, what should you do? 1.      Stabilize it with your right hand.2.      Inflate the tube cuff.3.      Provide ventilation or oxygenation.

Which of the following define successful application of noninvasive ventilation (NIV)? overall improvement of patient’s blood gas normal blood gas PaO2 increased PaCO2 decreased

Which of the following injuries are NOT seen with tracheostomy tubes? 1.      tracheomalacia2.      tracheal stenosis3.      glottic edema4.      vocal cord granulomas

Which of the following are characteristics of most noninvasive ventilators? 1. electrically powered2. blower driven3. microprocessor controlled4. double-circuit design

The following issues: water in the ventilator circuit, kinking or biting of the endotracheal tube, secretions in the airway, bronchospasm, mucus plugs, tension pneumothorax, decreases in lung compliance, increases in airway resistance, or coughing could cause which of the following?

Which of the following is an example of acute ventilator failure?

Which of the following is indicative of impending ventilator failure?

Tachypnea, agitation, accessory muscle use, active expiration, muscle fatigue and respiratory failure are signs of:

During patient rounds in the ICU, the high-pressure alarm of a ventilator is triggered. The condition is likely caused by: