The patient presents to the emergency department complaining of lightheadedness and states, “I feel like my heart is racing.” Upon assessment, the nurse notes the patient is diaphoretic and pale. Vital signs are significant for a heart rate of 220 bpm, blood pressure of 70/50 mm Hg, and oxygen saturations of 96%. The 12-lead EKG indicates supraventricular tachycardia. Which medication does the nurse prepare to administer?

The nurse holds the dose of propranolol and contacts the provider for which vital sign?

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?