MOSCOW — The Russian Parliament gave final approval Friday to a proposed ban on the adoption of Russian children by US citizens, drawing a sharp response from the United States, which urged officials not to play politics with the lives of orphans.

‘‘If it becomes law, the legislation passed today will needlessly remove the path to families for hundreds of Russian children each year,’’ the US ambassador, Michael A. McFaul, said in a prepared statement. ‘‘The welfare of children is simply too important to be linked to other issues in our bilateral relationship.’’