6PR Mornings host Liam Bartlett has lifted the lid on the hypocrisy of the political donation regulations of state parliament after WA Premier Mark McGowan defended attending a lavish business dinner that featured $1000 bottles of wine.

Gifts to ministers worth more than $300 can only be kept if they pay the difference above the $300, but there is no cap on the hospitality like they receive or accept.

"For example, if the Premier drank a whole bottle of Penfolds Grange last Friday worth a $1000, there's no need to pay any difference between the $300 and $1000," Bartlett said on Friday.

"That tends to stick in the throat of some of our listeners."

One of them is emergency clinical nurse and registered midwife Lorraine Durbin, who felt compelled to email the program after coverage this week of the Penfolds Grange dinner at property developer Nigel Satterley's house.

She told Bartlett how a $50 coffee machine gifted to the staff room for emergency department nurses at Rockingham Hospital was removed because they were told gifts were not allowed to be accepted.

"Shame on you Mr McGowan for slurping very expensive red wine with your property tycoon friend, whilst your nurses cannot have good coffee," she said.

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