The nurse understands which is an indicator that norepinephrine is having its desired effect?

The 7-year-old child is being evaluated for attention deficit or learning disability. The child’s teachers report a lack of attention to detail and an inability to follow direction. The child’s parents report issues at home, too – not doing what is asked and not remembering what has been said. While being evaluated, the child begins to blink rapidly for 20 seconds. Once the episode ends, the child does not remember what happened or the purpose of the appointment. The nurse prepares education for the parents about which medication? 

The nurse is assigned to a 45-year-old HIV-positive male patient who is admitted with a MRSA skin infection on his right arm secondary to intravenous drug use. The patient is prescribed intravenous vancomycin. Twenty minutes after starting the vancomycin infusion, the patient develops a mild erythematous macular rash on the face, trunk and extremities. Which action is performed first?