Debbie Schlussel explains it all in her informative post Revealing Muslim Doctors’ Oath
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Hereby we take this oath in Thy name, the Creator of all the Heavens and the earth and follow Thy counsel as Thou has revealed to Prophet Mohammad (pbuh).
“Whoever killeth a human being, not in liew [sic] of another human being nor because of mischief on earth, it is as if he hath killed all mankind. And if he saveth a human life, he hath saved the life of all mankind”e (Qur’an V/35)
The holes here are so big you could drive a Mercedes bomb through them and Debbie does.