Speaker Bronwyn Bishop has broken the all-time record for the number of MPs ejected from Parliament in one day, leading to Labor again questioning her impartiality.

During a rowdy question time on Thursday, where the government was being pressured to make clear its plans for a $7 GP fee, and at the end of a difficult week for the government, Ms Bishop booted 18 MPs from the chamber, all of them Labor.

Mrs Bishop defended the record number of ejections, saying Labor's behaviour in question time had been "an absolute disgrace".