1. What initial test should a provider order in a patient presenting with Vertigo? Rheumatoid factor 2. Mr. D is a 56 year old male with newly diagnosed multiple myeloma who is admitted through the ER with back pain after falling against a bookcase at home. Chest x-ray shows a rib fracture. Electrolytes reveal a serum calcium of 12.7 mg/dl. How would you treat Mr. D? Normal saline and loop diuretics 3. A 67-year-old male is brought to the emergency department after a syncopal episode. He lost consciousness while shopping in the mall. He denies any nausea, diaphoresis, chest pain, or shortness of breath. He has had two episodes of lightheadedness over the last month but has not seen a doctor. His past medical history is significant for long-standing hypertension, which is being treated with enalapril. His blood pressure is 135/90 mmHg while supine, and 130/85 mmHg while standing His heat rate is 64/min ECG shows a sinus rhythm with high voltage, prolonged PR interval, prolonged QRS interval, normal QT interval and occasional premature ventricular contractions (PVC) E- chocardiography reveals left ventricular hypertrophy and an ejection fraction (EF) of 55% Which of the following is the most likely cause of this patient's syncope? Autonomic dydfunction