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Basic Life Support (BLS) Last modified: April 21, 2026

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Basic Life Support

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What is Basic Life Support (BLS)?

Basic Life Support (BLS) refers to the immediate medical care given to someone experiencing a life-threatening emergency, such as cardiac arrest, respiratory failure, or airway obstruction. It involves essential skills like cardiopulmonary resuscitation (CPR), using an automated external defibrillator (AED), and managing an obstructed airway.

  • What does Basic Life Support mean in Health & Safety?

    In the UK, while it is not a strict legal requirement for all employees to receive BLS training, the Health and Safety (First-Aid) Regulations 1981 require employers to ensure that appropriate first aid arrangements are in place. Depending on the workplace risk assessment, this may include providing staff with BLS training.

    Key components of BLS include:

    • Recognising cardiac arrest and calling emergency services (999)
    • Performing chest compressions and rescue breaths (CPR)
    • Safe use of an AED where available
    • Managing choking and recovery positions

    Employers in higher-risk environments (e.g. manufacturing, construction, healthcare) are strongly advised to ensure staff are BLS trained.

  • Why does basic Life Support matter for your business?

    Providing BLS training can make the difference between life and death in a medical emergency. For employers, the benefits include:

    • Protecting employee health and safety
    • Meeting duty of care responsibilities
    • Reducing legal and reputational risks if emergencies are mishandled
    • Building employee confidence and a stronger safety culture

    Having employees trained in Basic Life Support means your business is prepared to respond quickly, confidently, and effectively when it matters most.

Basic Life Support

Best Practices & Guidelines

  • Carry out a first-aid needs assessment to determine training requirements
  • Provide accredited BLS or Emergency First Aid at Work (EFAW) training
  • Ensure AEDs are available in high-risk workplaces and staff know how to use them
  • Refresh BLS training every 12 months to maintain confidence and competence
  • Promote awareness of emergency procedures across the workforce

impact HR can help businesses by advising on first aid policies, arranging BLS training for employees, and ensuring compliance with HSE standards.

Your Questions Answered

Everything you need to know about Basic Life Support (BLS)

  • What’s the difference between BLS and First Aid at Work?Reveal

    BLS focuses on life-threatening emergencies like cardiac arrest, while First Aid at Work is broader, covering a wide range of workplace injuries and illnesses.

  • Is BLS training mandatory in the UK workplace?Reveal

    Not always, but employers must provide “adequate and appropriate” first aid cover under the 1981 Regulations, which may include BLS depending on workplace risks.

  • Who should receive BLS training?Reveal

    At minimum, designated first aiders. In high-risk sectors, it is recommended for a wider group of employees.

  • How often should BLS training be refreshed?Reveal

    At least annually, to maintain skills and confidence.

  • Can anyone use a defibrillator (AED)?Reveal

    Yes. AEDs are designed for public use, and modern devices provide step-by-step instructions. However, training improves response time and confidence.

Need support with Health & Safety?

Whether you need help setting up first aid policies or arranging accredited training, impact HR can support your business in making sure staff are ready to respond to emergencies.

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Where to find out more A collection of hand-picked useful resources for Basic Life Support from impact HR and beyond