<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 55-year-old man is brought to the emergency department 3 hours after ingesting approximately 30 tablets of an unknown drug in an apparent suicide attempt. His temperature is 36.5C 97.7F, pulse is 40min, respiratory rate is 19min, and blood pressure is 8550 mm Hg. Examination shows cold, clammy extremities. Scattered expiratory wheezing is heard throughout both lung fields. His fingerstick blood glucose concentration is 62 mgdL. ECG shows prolonged PR intervals and narrow QRS complexes. Intravenous fluid resuscitation and atropine do not improve his symptoms. Administration of which of the following drugs is most appropriate next step in management of this patient?? A: Sodium bicarbonate, B: Pralidoxime, C: Glucagon, D: Activated charcoal, E: Naloxone,  <response>: This is a medical question asking about the appropriate next step in managing a patient who has ingested an unknown drug in a suicide attempt. The patient is hypotensive, bradycardic, and hypoglycemic. ECG shows prolonged PR interval and narrow QRS complexes. IV fluids and atropine have not helped. Based on the clinical presentation, the patient appears to have taken a beta blocker overdose. Beta blockers can cause bradycardia, hypotension, hypoglycemia, and prolonged PR interval on ECG. The choices given are sodium bicarbonate, pralidoxime, glucagon, activated charcoal, and naloxone. Sodium bicarbonate would be used for tricyclic antidepressant overdose, not beta blocker, so is incorrect. Pralidoxime is used for organophosphate poisoning, so is incorrect. Glucagon can help reverse beta blocker-induced hypoglycemia, so is a reasonable choice. Activated charcoal absorbs toxins in the GI tract but would not help with symptoms already present. Naloxone reverses opioid overdoses, so is incorrect.The best next step would be glucagon to reverse the hypoglycemia caused by the beta blocker overdose.C: Glucagon 