This is the first time my daughter has had her blood work done since on keppra. The results may be common when taking these meds but it shows that her carbon dioxide level is about 5 pts low. Also her level of keppra is about 50 pts over the within range numbers. A few others were a point or so low. Is this anything to be concerend about? I would have called her neuro to ask but his office was closed today and he has not seen the results yet. Thanks in advance