Write off Medical Board Exam Deduction as a Job Expense?

No, job expenses related to W-2 employment are not deductible on your federal return in tax years 2018-2025.   Some states allow the deduction on your state return.     If you are in one of those states, you can enter the costs on your federal return (they won't be deductible) and TurboTax will transfer them to your state return to possibly deduct there.

Can employees deduct any job-related expenses?

Where do I enter job-related employee expenses? (Form 2106)

Which states qualify?

Which state do you live in?