The nurse is caring for the patient with fever, chills, and a cough productive of green sputum. The chest X-ray shows a hazy opacity. The nurse checks the patient's medical history for sensitivity to which medication? 

The nurse is planning care for the patient who will undergo hip replacement surgery in a month. When is the best time to provide teaching about the use of a patient-controlled analgesia (PCA) pump?

The nurse suspects the patient has experienced an air embolism from the peripherally inserted central catheter (PICC). Place the steps the nurse takes to intervene in the correct order.