I'm having neck lift with mini face lift. Pre procedure blood work up showed elevated Factor Viii. What's my clotting potential?

Because this isn't a condition you knew of prior to getting pre-surgical blood work, you should schedule an appointment with a hematologist before proceeding with cosmetic surgery. Elevated Factor VIII is associated with an increased risk of thrombosis, and it needs to be thoroughly evaluated to determine the clinical significance of your condition; excessive clotting can not only affect your legs but also the skin flaps created during a facelift. Best of luck.

Hello and thank you for your question. This should be fine, as long as you have no history of blood clots or spontaneous abortions/miscarraiges.  Still best to consult a hematologist and speak with your surgeon.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

A blood test result that is out of range and out of context should always be redrawn. However, if it still is present on a repeat test, it would warrant review by a hematologist.  Best wishes.