This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pharmacology
[{'content': 'Adult loading dose of aminophylline Is: \nSelect and explain. \nA. 50 mg/kg, B. 0.5-1 mg/kg, C. 2-3.5 mg/kg, D. 5mg/kg bd wt', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Loading dose- It given as iv 250mg/10ml- or 3-5mg / kg aminophylline IV (max 500mg) maintanence dose- 500 micrograms / kg / hour ( Elderly: 300 micrograms / kg / hour) Add 500mg to 500mL or 250mg to 250mL of a compatible infusion fluid (1mg/mL). Administer using a rate controlled infusion pump. ESSENTIAL OF MEDICAL PHARMACOLOGY SEVENTH EDITION KD TRIPATHI PG NO.227', 'role': 'assistant'}]