NHS says look out for 18-hour symptom linked to 4,000 deaths a yearThis life-threatening emergency requires immediate medical attentionThe NHS has shared important signs of a life-threatening medical emergency to look for (Image: Getty)Brits are urged to look out for an 18-hour symptoms that could indicate a life-threatening medical emergency. The NHS shared some of the signs of sepsis to be aware of. Sepsis is a potentially deadly response to an infection in the body, which can cause significant damage to tissues and organs. It is estimated to cause around 4,000 deaths a year in England. In an update from NHS England, the health body is looking to prevent as many sepsis deaths as possible by 2035 by implementing new measures such as providing wearable devices to people at risk. These could be installed on their mobile phones or worn as watches or bracelets. The devices tested by the NHS will monitor people’s vital signs at home including their blood pressure and heart rate and will automatically flag that a person’s condition has deteriorated and they need to be tested for sepsis. According to the NHS, people who are on immunosuppressive treatments such as some cancer patients, older people or those with a catheter or a serious mental illness are at higher risk of sepsis.