The third stage is passing of the placenta. The afterbirth might pass with each individual puppy, usually within 15 minutes of delivery. If the mother has a few puppies in rapid succession, those placentas may come out en masse.
Best Answer: Types of coma can include: Toxic-metabolic encephalopathy. This is an acute condition of brain dysfunction with symptoms of confusion and/or delirium. The condition is usually reversible. The causes of toxic-metabolic encephalopathy are varied.
Problems that can lead to coma include: 1  Trauma: Head injuries can cause the brain to swell and/or bleed. 2  Swelling: Swelling of brain tissue can occur even without distress. 3  Bleeding: Bleeding in the layers of the brain may cause coma due to the compression on the injured side of the brain.