An abortion of a viable child may be performed only when there is in attendance a physician other than the physician performing the abortion who shall take control and provide immediate medical care for the viable child born as a result of the abortion. The physician performing it, and subsequent to the abortion, the physician required by this section to be in attendance, shall take all reasonable steps in keeping with good medical practice, consistent with the procedure used, to preserve the life and health of the unborn child. Failure to do so is a class C felony.