Most preventable injuries for persons over 75 years of age are caused by:

While preparing to perform endotracheal suctioning on a mechanically ventilated patient, the therapist is alerted to the activation of low-pressure and low-volume alarms. These alarms are mandatory, redundant, and noncanceling. How should the therapist classify this event?

A. Level 4 B. Level 3 C. Level 2 D. Level 1

A poorly positioned AP axial cranial projection (Caldwell method) demonstrates the petrous ridges inferior to the infraorbital margins. How could the positioning setup be adjusted to obtain an optimal projection?

1. Rotate the patient's face toward the left side. 2. Adjust the central ray angulation caudally. 3. Tuck the patient's chin until the OML is perpendicular to the IR. 4. Elevate the patient's chin until the OML is perpendicular to the IR. a. 1 only b. 2 and 3 only c. 3 and 4 only d. 2, 3, and 4 only