~Rat terrier vommiting clear, yellowish, froth ?

Sounds like water, and stomach acid.
 
What do you feed the dog?
 
How much per day?
 
Is he vaccinated?
 
Have you seen a vet recently???

I agree with Dulce...all what she said and it might be good to get a vet check...The yellow is from the digestive juices that seem to accumulate in the stomach...why  is any ones guess...I would stop giving her water, but rather give her ice cube and feed basically hamburger and cooked rice till the pup can be seen..Usually it is not a big problem but it should be checked....

thanks for the reponse...
feed her a cup of food a day with 1/4 moist food.  water bowl always full and fresh.  she is spayed and has all vaccinations.
 
will be seeing the vet early next week.... just wanted to hit up the board here and get some sort of possible idea on what the culpruit could be.
 
carlos

Does she eat only once a day?  Willow has the same problem if she goes too long without eating.  Do you notice this is only in the morning or late at night?  You might want to break up her meal into two or feed her something in between. 

we tend to feed her just once a day. The fiance is in charge of that, but seems inconsistant with time frames-- sometimes in the morning , somthings in the evening.
  These "vomit episodes" of the dog seem to be just as sparadic... wonder if indeed it's a feeding time issue ? hmmmmmmmmmmmmmmm.....

I'm betting it is.  I'd try breaking up her daily ration into two meals.  And, maybe throw in a snack before bedtime.  The vet described to me that the stomach acids just accumulate in the stomach and with nothing to work on (food) the dog will toss them up.  I do know of some dogs who still have this problem even with spaced out food and need to take something like Pepsid.  But, most at least in my experience, seem to do fine as long as they don't go too long without food.

I'm hoping for your sake that the vomiting is just because of not eating enough during the day. Is your dog overweight? If not, I'm sure you could feed it more than 1/4 a cup a day plus some canned/wet food. If it's not overweight, suggest feeding it 1/4 to a half a cup 2x a day.

My Aussie had the same problem and I just thought it was because she occasionally starved herself, not me, she just didn't want to eat. But just within the last 6-7 months she started throwing up blood and we really have no clue what's wrong with her even though I took her to our U's vet hospital. They thought it was inflamatory bowel disease and had me try changing the kind of food she ate but that didn't work. The only way we can keep her from throwing up is to have her on drugs. So, hopefully your dog won't develope this problem and changing the way it's fed will help.

Shiva

Any word on your baby?
Just a thought and may not be the case. Female middle aged dogs are one of the breeds known to test positive for addisions disease. The reason why I bring this up is, Stress is a known cause to bring out the disease. You say you adopted so change is evident. Vomitting white mucas is a sign, as time goes on you may see more signs.
Again this may not be it but, because the signs are so vague addisions dogs most times go into addisions crisis.
Anyways hope all is well
Wendy