Which of the following is the most common sign of occlusal trauma?

A patient in the ICU receiving mechanical ventilation has just undergone a fiberoptic bronchoscopy procedure in which a tissue biopsy was collected. Immediately following the procedure, the respiratory therapist notes that the peak inspiratory pressure on the ventilator has increased. Potential causes for this include all of the following EXCEPT

A. hypoxemia. B. pneumothorax. C. pulmonary hemorrhage. D. bronchospasm/laryngospasm.

At the scene of a mass-casualty incident, you notice a bystander who is clearly emotionally upset. An appropriate action to take would be to

A. tell the bystander to leave the scene at once. B. have the bystander assist you with patient care C. notify the police and have the bystander removed D. assign the bystander a simple, non-patient-care task