Lazarus treated for kidney stones

Palmer United Party senator Glenn Lazarus has been treated in hospital for kidney stones.

The former rugby league player is expected to make a full recovery.

PUP leader Clive Palmer revealed during a National Press Club address on Monday that his party's Senate leader had been taken to hospital.

"We all want to support him and wish him well," Mr Palmer said.

Senator Lazarus holds a crucial crossbench vote and was expected to be "paired" in the event of a division in the Senate.