Anyway CPR has changed significantly.now you do really quick rapid compressions. 30 + and if the possible snot in dog nose or mouth in humans really bothers you, just give the cardiac compressions. it is better then nothing and sometimes it can be the answer.
They are also not so much into looking for a pulse..People or dog will usually give some movement/gagging. Oh and a defib would really be good and they are everywhere now and very easy to use..Almost fool-proof