Methylphenidate (Ritalin), a drug used to treat attention deficit hyperactivity disorder (ADHD), achieves its therapeutic action by ________ the CNS, thereby causing ________ and allowing for greater concentration and focus

A 3-year-old struck her chin on the sidewalk when she fell. Her mother is holding a cloth over the wound. The cloth is saturated with blood, but there does not seem to be a great deal of additional bleeding. The patient is awake and her skin is warm and dry. You should:

A) take over direct pressure and wait for the responding ambulance crew. B) remove the cloth and place a sterile dressing over the wound. C) lift the cloth to see if bleeding has stopped, and then continue direct pressure. D) ask the mother to continue to hold direct pressure while you assess the patient and get a history.

One common proportioner is an eductor, which works on the ____ principle.

A. Stolz B. Bernoulli C. Venturi D. Higbee