I'm not a nurse, however, I would suggest that you not disclose. "Could" is insanely vague. Are you supposed to be psychic? You could get a cold and not be clearheaded and make a mistake. Are you supposed to inform the board of nursing every time you have the sniffles? Many things could interfere with your job. Or they might not.

I think of you were investigated, you would be able to argue that your condition was well-controlled enough that no MD had ever told you that you needed to be mindful because your condition would affect your work. You had never been advised that you were a potential danger. And I think a good lawyer could easily defend against this omission.

After all, I imagine that on the application they don't have a checklist of conditions that could affect your work and conditions that could not. Why should BP automatically potentially affect your work and other conditions not? They didn't directly ask you if you have BP, right?

Good luck,
EJ