A nurse is taking care of a patient on continuous heparin sodium by IV at 1500 units per hour. Pharmacy dispenses the IV bags of 500 mL D5W with 15,000 units of heparin sodium. At which rate does the nurse set the infusion pump for this patient?

Following electroconvulsive therapy, the patient with bipolar disorder tells the nurse he does not remember whether he arrived by bus or car. Which response by the nurse is appropriate? 

The emergency room nurse is caring for a patient who ambulated into the triage room wearing sunglasses and a scarf. Upon request, the patient removed her sunglasses and scarf, revealing bruising around her neck and eyes in various stages of healing. The patient became hysterical and stated her husband tried to kill her. Which response by the nurse is the most appropriate?