The phrase "as a final question" is correct and usable in written English.
It can be used when you are concluding a discussion or interview and want to ask one last question.
Example: "As a final question, could you share your thoughts on the future of the industry?"
Alternatives: "to wrap up" or "in closing".
— LYNN ZINSER As a final question, Couric asked Te'o how he felt this story would affect his N.F.L. future.
As a final question, I mentioned to Solzhenitsyn that I remembered his speech in Liechtenstein, when he said that modern man, by putting himself at the center of the world, fears death because death thus becomes the end of all things — and I asked him if he feared dying now that he was seventy-five.
As a final question, we were interested in finding out whether the implicit-explicit and the single-multiple axes were consistently obtained when a subset of subjects were analyzed using MDS, or whether other superordinate dimensions could be obtained in specific subgroups of subjects.
As a final question, patients were asked to rate their PFS at 24 months as compared to PFS during ICU-stay (worse, equal, or better).
As a final question, each interview participant was asked to describe what he or she would have done differently or what activities he or she would recommend for a future outbreak.
A final question mark as to that goal perhaps comes from the diversity of otherwise of the site's masthead.
A final question serves as a quality control measure, asking how comfortable the patient felt being recorded to determine if the presence of the recorder in the conversation may have influenced the dynamic.
A final question: are the fans, also known as a team's customers, always right?
A final question is whether conducting Rasch analysis as documented in this article was worth the effort.
A final question: Mr. Le Coze once said that he saw himself as a wild animal, a panther.
