Problem: An 18-year-old woman presents to the clinic with exertional weakness and cold intolerance. Her mother who accompanies her reports the patient has recently lost a substantial amount of weight and frequently engages in extensive, intense exercise multiple times throughout the day. Observation reveals an emaciated appearance with the physical exam findings shown above. Which of the following indicates a need for inpatient treatment? Need Assignment Help? Blood pressure of 83/65 mm Hg Body mass index of 16.3 kg/m2 Heart rate of 50 bpm PR interval of 0.31 seconds