A 4.5-kg 2-year-old spayed female miniature dachshund dog was presented for ingestion of an unknown rat and mouse bait.

Case Presentation. The owners had no information on the bait because they had just moved into the house and the bait had been left by the previous owner. The only information the owner could confirm was that the bait was a green pellet in a small bag. The owner caught the dog chewing on the bag about 1 hour previous to presentation; most of the contents were missing.Physical Examination. The dog had no previous health problems and was not showing any clinical signs. The only significant finding on examination was the presence of bait between the dog's teeth.

Initial Treatment. Emesis was induced with 0.13 mg of apomorphine IV, and the dog vomited several times. About 2 tablespoons of the bait came up in the vomitus.

ASK YOURSELF . . .

What is the next step?A. Give a dose of activated charcoal and send the dog home with a prescription for a 7-day course of vitamin K1.B. Give a dose of activated charcoal; send the dog home with a prescription for a 30-day course of vitamin K1; check prothrombin time 48 to 72 hours after the completion of vitamin K1 therapy; obtain baseline serum calcium, phosphorus, blood urea nitrogen, and creatinine levels; and then recheck daily for 3 days.C. Give a dose of activated charcoal, send the dog home with a prescription for a 30-day course of vitamin K1; and check prothrombin time 48 to 72 hours after completion of vitamin K1 therapy.D. Give a dose of activated charcoal; send the dog home with a prescription for a 30-day course of vitamin K1; and check serum calcium, phosphorus, blood urea nitrogen, and creatinine daily for 4 days.