Whаt medicаtiоn cаn yоu administer thrоugh an endotracheal instillation when IV access is not possible? 1. Epinephrine 2. Atropine sulfate 3. Lidocaine hydrochloride 4. Naloxone hydrochloride A. 1,3 B. 2, 4 C. 2,3 D. All the above