During fiberoptic bronchoscopy, a patient’s SpO2 drops from 91% to 87%. Which of the following actions would be appropriate?I. Apply suction through the scope’s open channel.II. Give oxygen through the scope’s open channel.III. Increase the cannula or mask oxygen flow.

Which of the following should be prescribed to provide adequate humidification to an intubated patient?

Which of the following are indications for the use of acetylcysteine (Mucomyst)?1. treatment of acetaminophen overdose2. treatment of excessive, viscous mucus secretions3. treatment of aspirin overdose4. treatment of purulent mucus secretions by breaking up DNA

The functional residual capacity measured by body box is 15% larger that measured by nitrogen washout.  This difference is best explained by change in which of the following?

Which of the following autonomic or protective neural responses represent potential hazards of emergency airway management?1. hypertension2. eupnea3. cardiac arrhythmias4. laryngospasm

All of the following reduce the risk of nosocomial infection when using heated humidification systems except:

After coming on a patient with complete obstruction of an oral endotracheal tube, your efforts to relieve the obstruction by moving the patient’s head and neck and deflating the cuff both fail. What should be your next step?

All of the following lead to an increased end-tidal PCO2,except:

75 year old COPD patient in MICU being monitored with a Swan Ganz or PAC with the following hemodynamic data:CO 4.7 L/minPCWP 8 torrCVP 9 torrmPAP 14 torrWhich of the following would most likely represent the patients condition?

You are the respiratory therapist assigned to a 300 bed hospital NICU and are called to the bedside of a 32-week gestational age newborn boy who was placed on pressure-limited mechanical ventilation and given surfactant therapy 2 hours ago. He is exhibiting hypocapnea and his tidal volumes are higher than were previously documented. What may be the cause of this finding?