Ynys Môn MP Virginia Crosbie has backed a campaign to put lifesaving CPR skills on the school curriculum in Wales.
Virginia put her name to a letter calling for the Welsh Government to include the lessons that are already taught in England and Scotland.
The Prime Minister Boris Johnson also backed the calls in parliament last week.
The letter signed by 20 MS and MPs was sent by Delyn MP Rob Roberts to Welsh Education Minister Kirsty Williams.
“It is simply not acceptable that children in Wales are being deprived of the opportunity to learn such vital skills which will equip them with the confidence and knowledge to assist in future medical emergencies” the letter said.
Virginia added: “There are more than 30,000 out of hospital cardiac arrests across the UK each year and teaching schoolchildren how to undertake CPR would undoubtedly save some of these lives.
“The Curriculum of Wales is now being developed and this seems a good time to include these skills in it. I hope the Welsh government makes a note of the letter and takes the right action to save lives.”