You are called to the home of a 65-year-old male patient who is complaining of weakness, swelling in the hands and feet, and fatigue. The patient reports a four-day history of decreased urine output and a history of high blood pressure, diabetes, and heart disease. The patient has a slightly elevated heart rate and blood pressure, and states he would like to go to the hospital to "get checked out." How will you care for this patient?​