 CONT: When Lynn is operating on Johns head, she cuts the skin from  the skull and then clips off some veins. Right when she asks Amanda  to fill the syringe with alcohol to clean Johns head, Lynn turns  back to wipe up some of the blood, but there are no clips in place.  A shot after that, we see her taking the syringe from Amandas head  and squirting the alcohol on Johns head and the clips are there.