The patient presents to the emergency department and states, "I don't remember being bitten, but it looks like I have a spider bite on my foot." Upon assessment, the nurse notes cellulitis and a large boil that is subsequently lanced and drained. The nurse anticipates administering which antibiotic?

The patient who takes milk of magnesia every day is at risk for which electrolyte imbalance?

The nurse is caring for a patient with a suspected methicillin resistant staphylococcal aureus (MRSA) skin infection. While awaiting wound cultures and sensitivities, the patient is empirically given vancomycin. When the nurse starts the IV infusion of vancomycin, the patient acutely develops a pruritic, erythematous rash that involves the face, neck and upper torso. Which action does the nurse take first?