We've learned Chyna was rushed to the hospital early Saturday -- her birthday. She was so drunk when was admitted, the shrinks at hospital couldn't even do a psych evaluation.

Paramedics were called to her home in Burbank just before 5:00 AM. Saturday. She was celebrating her birthday with a few friends and had a way too many drinks -- which didn't mix well with her prescriptions.

Friends found her passed out with cuts on her arms and were so worried, they called 911. After she was taken to the hospital, doctors wanted to perform a psych evaluation, but her *lo** alcohol level so high they had to wait.

We spoke with Chyna in the hospital -- She said, "All I really want right now is a hamburger and fries right now."