Is she hypoglycemic?

this girl in our cl cannot skip any meals or she gets dizzy and starts shaking, and almost pes out. she is 16, and really skinny, and naturally doesn't eat a lot. well yesterday she looked so pale, so the school nurse asked her if she had anything to eat, and she said she had cereal, but she was so out of it, and looked,confused,shaky,her eyes were like half way open. we were trying to get her up out of her desk so she could lay down and she said she couldnt stand up. we helped her up, and her legs went out and she just fell. the nurse checked her blood sugar and it was 32. we gave her some crackers, while someone went to get a coke, and something with peanut er,and she tested it again after she ate the crackers, and it was 45, but thats still low isn't it. she was just barely conscious, but awake enough to nibble on some crackers, and sip some coke. her blood sugar finally got back to normal and she was ok, just weak/tired the rest of the day. shes not diabetic,