The nurse is assigned to a 55-year-old patient admitted for diabetic ketoacidosis. The provider writes the patient’s insulin regimen on the admission orders as follows, - “insulin NPH 25 IU.” Which action by the nurse is most appropriate? 

The patient with a long history of intravenous drug abuse presents to the emergency department with white lesions on both sides of the tongue that change appearance every couple of days. Despite fatigue and recent weight loss, the patient’s assessment is normal. Which type of precautions does the nurse use for this patient?

The nurse is assisting the provider in lancing the abscess of a patient whose medical history is notable for anaphylaxis after ingestion of oysters. The nurse enters the room as the provider begins swabbing the affected skin with povidone-iodine solution. Which response by the nurse is appropriate?