Patients suffering heart failure could be given a placebo in place of an adrenaline shot, as part of a new study to determine the effectiveness of the drug during resuscitation.
Paramedics will have to unwittingly administer the salt water dummy drug to unknowing patients in an experiment to be carried out by Warwick University, along with the University of Surrey.
Around 50,000 people in the UK suffer a cardiac arrest, according to the university, and resuscitation attempts are successful in only one in four cases.
Cardiac arrest patients have routinely been given an adrenaline jab since the 1960s, but the team of researchers has said because it reduces blood flow to the brain, it could cause severe brain damage and even death.
More top news
The Government intends to fund abortions in England for women arriving from Northern Ireland, where it is illegal, Philip Hammond has said.
Rain will continue to swirl around an area of low pressure over the UK bringing further prolonged spells of rain to some areas.
As a deadline looms for talks to salvage power sharing in Northern Ireland, Sinn Fein has warned it is "make your mind up time for the DUP".