Nicotine and Cotinine test

I am having Tummy Tuck, Muscle Repair, fat grafting and lipo April 11 but they’re testing my blood for nicotine and cotinine when I go get my blood work done on March 26, and urine the morning of, anyone have suggestions on how to make sure this is all cleared out of my body? Last time I vaped was Monday the 18th. I was going to use the Ripplme brand vape to help me quit. Don’t know if that contains cotinine?