A primary care NP sees a 3-year-old patient who has been vomiting for several days. The child has ...

A primary care NP sees a 3-year-old patient who has been vomiting for several days. The child has had fewer episodes of vomiting the past day and is now able to take sips of fluids without vomiting.
 
  The child has dry oral mucous membranes, 2-second capillary refill, and pale but warm skin. The child's blood pressure is 88/46 mm Hg, the heart rate is 110 beats per minute, and the temperature is 37.2 C. The NP should: a. prescribe promethazine.
  b. prescribe a scopolamine patch.
  c. begin oral rehydration therapy.
  d. send the child to the hospital for IV fluids.