C&S TMC Exam 1 questions with correct answers

- An infant is being mechanically ventilated via a time-cycled, pressure-limited ventilator. Which of the following would occur if PEEP were increased without a corresponding increase in peak pressure? Answer The tidal volume would decrease - A physician requests the respiratory therapist to assess the upper airway function of a patient with a fenestrated tracheostomy tube. The therapist should: Answer Remove the inner cannula, deflate the cuff, plug the outer cannula - A patient receiving sustained maximal inspiratory (SMI) treatments with a volume-oriented incentive spirometer device begins to inhale through the device 18 times per minute. Which of the following best explains this situation? Answer The patient needs re-instruction regarding the SMI therapy - After initiating mechanical ventilation in the A/C mode for an adult male patient, the respiratory therapist observes that the patient is agitated and having difficulty in cycling the ventilator. Which of the following should the therapist do? Answer Increase the sensitivity setting - Data recorded for a 52 kg (110 lb) mechanically ventilated patient who has a long standing history of chronic hypercapnia are as follows: Ventilator Settings Arterial Blood Gases Mode: SIMV pH: 7.36 VT: 400 mL PaCO2: 62 mmHg