question: Q:A 3-week-old boy is brought to the emergency department by his parents because of a 3-day history of progressive lethargy and difficulty feeding. He was born at term and did not have difficulty feeding previously. His temperature is 39.4°C (103°F), pulse is 220/min, respirations are 45/min, and blood pressure is 50/30 mm Hg. Pulse oximetry on 100% oxygen shows an oxygen saturation of 97%. Examination shows dry mucous membranes, delayed capillary refill time, and cool skin with poor turgor. Despite multiple attempts by the nursing staff, they are unable to establish peripheral intravenous access. Which of the following is the most appropriate next step in management?? 
  {'A': 'Rapid sequence intubation', 'B': 'Intramuscular epinephrine', 'C': 'Internal jugular vein cannulation', 'D': 'Intraosseous cannulation', 'E': 'Ultrasound-guided antecubital vein cannulation'},