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?

The patient’s stool sample is positive for Entamoeba histolytica. The nurse plans education about which class of medication for this patient?

The patient receiving a continuous infusion of total parenteral nutrition (TPN) through a peripherally inserted central catheter (PICC) line reports sudden onset dizziness, dyspnea, and tachycardia. Upon assessment, the nurse notes the patient is difficult to arouse. The IV tubing is noted to be cracked and have air in it. Which action does the nurse take first?