A 9-month-old female Great Dane is admitted for a routine OH…

A 9-month-old female Great Dane is admitted for a routine OHE.  The animal weighs 70 lb and the veterinarian wants to use the following preanesthetic regimen:  butorphanol (10mg/ml) IM at 0.2mg/kg; acepromazine (10mg/ml) IM at 0.05mg/kg; and atropine (0.02% solution) SC at 0.02mg/kg.  How much butorpahanol should be administered?