Does anyone know if consistently superior test taking skills would be contrary to a diagnosis of ADHD?

I am still awaiting my final sit down and discussion of my DDs psycho-educational testing results, but when we met with the psych last week, he just looked at whatever the diagnostician gave him and said "well, she definitely qualifies for medication".

After reading some of the ADHD threads here, I am wondering if the fact that my DD has always had superior test-taking skills (other than timed writing) might be in conflict with a diagnosis of ADHD.

Any insight would be appreciated!