According to teh NIH, its nwo becoming stanbard to do a Glucose test. A basic in office may not, however be conclusive.
If you are showing signs often an A1C and test tube test might be required.
Too many times teh use of a hand glucose meter has not showed elevations, and lab tests do via standard lab work.
If teh perosn is showing even basic symptoms its a good idea.

One thing though, Metabolic X syndrowm, pre diabetes will notshow up in hand held units. other tests are needed for that.