DOT Exam concerns

Absolutely!!!! I would advise ANYBODY to be careful about such a diagnosis based on anything but one or two tests. My VA endocrinologist and I went round and round over this back in 2017, the primary reason was he wanted to test me. And I went through it with the new person once the old one retired. This physician wanted to check to see if my body could still produce insulin. It can, but not anywhere near the levels I need, EVEN with Metformin.

One is an Oral Glucose Tolerance Test. You go into the test after an overnight fast. You then drink a sugary drink and they monitor your sugar levels.
A blood sugar level less than 140 mg/dL (7.8 mmol/L) is normal. A reading of more than 200 mg/dL (11.1 mmol/L) after two hours indicates diabetes.
A reading between 140 and 199 mg/dL (7.8 mmol/L and 11.0 mmol/L) indicates prediabetes.

The above test is the BEST test to diagnose diabetes. With this said, an A1C much over 6 means you need to be seen by a physician.

 

If you get your medical card and a class A, that includes privileges for classes B and C also. Yes, you would need to take the road test again in a bus for the passenger/ school bus endorsements, but you would also be able to drive anything. I don't know how PA does the road test, but I presume if you already had the class A and just needed the endorsements you would not have to re-do pre-trip. There are some exempt (no fed med card needed) jobs that are available with a class B, as you have found out, but having the card opens up more jobs and it can't hurt your job prospects to have a valid medical card if you wind up doing exempt intrastate work.