Are colleges and technical institutes obligated to take extra measures to help those with learning disabilities?

My girlfriend is going to a Veterinarian Technician Institute and she is dyslexic. She does well in all of her subjects, except for one during this term. She aces the multiple choice questions, but fails the test because the teacher deducts points for spelling and structure. My girlfriend has gone to the teacher and informed her of her disability and the teachers response was “In the real world spelling counts and they don’t care if you have dyslexia.”

My girlfriend claims if she fails one class she is kicked out of the school, and her final tomorrow might determine that. Can this teacher get way with such a thing, knowing full well that my girlfriend has a learning disability? I told her if she fails out because of her disability I will do everything in my power to rain Hell down on that school.