Blood in Vomit

Yes, you should be able to get in touch with your doctor through their emergency line. Call it and ask them to page the doctor on call!

If you're really concerned, go to the ER or an urgent care facility.

But, blood is not normal in vomit. ALWAYS have the emergency service call the physician on call - there is always a doctor on call for every office every night - that's why they wear pagers, and this is the kind of situation that is completely appropriate to page them for.

Good luck. I hope it's nothing serious.

I pray all went well with your son. I know that bright red blood in very small amounts can be from straining when you throw up. I don't think the dark blood is too good.
LEt us know.

Light colored blood isn't anything to worry about. Obviously something is wrong and your son is probably hurting. But my guess is that he somehow injured his membranes when he was throwing up repeatedly.
Dark (meaning old/dry) blood is different, and definitely should be checked out.
You can also watch his stool for almost black spots, those would stem from internal bleeding (this doesn't automatically mean he had a gushing wound somewhere inside).
Hope you get in touch with a doctor soon!

Go to the ER... do not wait for a doctor to call on the phone... it is never good to throw up blood or clood clots... and dark red blood (almost black) is a sign of internal damage and hemorrhaging...

GOOD GRIEF! That is alarming! I know I am late but I would think that your doc would have an on-call physician. If not, you can always call Children's Hospital or in this case I would go straight to the ER. I hope everything is ok.

Definitely head to the ER. Good luck! I hope he gets well soon.

ER -go to the ER NOW!