Melody,
Let me be another country heard from - I agree completely w/ everything posted but I'd add a suggestion from experience. If the family compares fasting levels from a lab w/ fasting levles from a meter, even the best ones (meters) can still be up to +/-10% different. The best check to "calibrate" the two is to have blood drawn for a fasting and then measure as soon as possible w/ a meter. The comparison of the 2 values will then give them a better means to interpret the results.

And by means encourage him to have an A1C done - that will give him a representative idea of his blood sugar for the last ~3 months, the nominal life span of a red blood cell.
Just a thought
Alkymst