My nephew who is 15 and has ADHD was uber interested in me testing my blood, asked me to test him which i did, and his reading was 8.1 before breakfast....ok so 8.1 isnt that high but as he is meant to be a healthy (although only weighs 4 stone) teenager it worried me, he has a Dr's appointment in 2 weeks for his ADHD meds, should i mention this? or is it completely normal?