I had a sibling dna test done with a sister taking optivo for cancer, would this effect the results?

Discuss w/ Dr: I think that the drug would impact only the tumor DNA (similarly to the effects of tobacco smoke) rather than the cells tested BUT you should ask the ones doing the testing. Read: https://www.mskcc.org/blog/why-new-immunotherapy-lung-works-only-some-people?variation=1&utm_expid=74469432-17.VGFwIbUsT_-G6o_CvxSOvA.1&utm_referrer=https%3A%2F%2Fduckduckgo.com%2F Best!