Article

Physician assistants in anaesthesia

Information for employers on the physician assistants in anaesthesia (PAA) practitioner role and how it fits within the NHS.

18 July 2025

More information on the physician assistants in anaesthesia practitioner role, including what training and qualifications they have and how they work within the NHS.

  • The physician assistants in anaesthesia (previously known as anaesthesia associate) role was first introduced in 2004, and is now established within many NHS hospitals. These are highly trained and skilled practitioners that work within an anaesthetic team under the direction and supervision of an autonomously practising anaesthetist, such as a consultant or specialty and specialist (SAS) doctor.

  • The role encompasses pre-, intra- and post-operative care. Under the direction of an autonomously practising anaesthetist, such as a consultant or SAS doctor, the physician assistants in anaesthesia may participate in:

    • pre-operative and post-operative assessment of patients
    • anaesthesia for day case surgery
    • pre-operative patient pathways
    • delivery of anaesthetic or sedation
    • advanced vascular access.

    Currently physician assistants in anaesthesia are unable to:

    • prescribe
    • administer and/or supply medicines under a patient group direction:

    A patient group direction (PGD) is a written instruction for the supply and/or administration of medicines to groups of individuals who may not be individually identified before presenting for treatment.  Read further information on PGDs. 

    Subject to locally determined governance arrangements, a PA may administer medicines under a patient specific direction. A patient specific direction (PSD) is a written instruction, signed by an authorised prescriber, for medicine(s) to be administered to a named person after the prescriber has assessed the patient. Read further guidance on PSDs.

  • Qualifying as an PAA requires successful completion of an PAA training programme. Rather than a direct application to a university, applicants are required to obtain a student PAA role within a Trust which has secured training places for PAAs. 

    Applicants are typically required to possess a biomedical science or biological/life sciences 2:1 honour degree. Alternatively they can be registered healthcare professionals (such as nurses or operating department practitioners) with at least three years clinical experience.

    On successful application, student PAAs will be assigned to a university, of which there are currently three offering PAA courses, whilst continuing to work within their trust. The PAA training course is two years and is designed around a curriculum developed by the Royal College of Anaesthetists in collaboration with the General Medical Council. 

  • Physician assistants in anaesthesia, as supplementary members of multidisciplinary perioperative and anaesthesia teams, can exert a positive impact on patients and service provision, by enabling flexibility to anaesthesia teams in service delivery and enabling consultants to manage their team more effectively. As a result of the increased workforce capacity,  theatre downtime can be reduced, and patient flow can be increased. 

Regulation of physician assistants in anaesthesia

The General Medical Council (GMC) legally commenced regulation of PAAs on 13 December 2024, with registration for individuals opening on the 16 December. There will be a two-year transition period before it becomes an offence to practice as a PA or PAA without GMC registration.  

Regulation is a vital step towards strengthening both patient safety and public trust of these professions and will help provide assurance that PAs and PAAs have the right level of education and training, meet the standards expected of regulated professions and can be held to account if concerns are raised.

Information on the actions employers can take to support registration can be found on our web page.

  • For those currently on the MVR (for PAs or PAAs) the GMC will have issued invitations to apply for registration. Individuals should have received an invitation with a link to their GMC online account which included their verified qualification and assessment details.  

    This link will commence the process of registration.

  • PAs and PAAs not currently on the MVR will need to apply directly to the GMC. Applicants will need to complete an eligibility checker and set up a GMC online account before completing the application. 

    Individual PAs and PAAs will need to have contacted the GMC themselves to commence the process.

The Leng Review

The Leng Review, published in July 2025, is an independent review of the (then named) PA and PAA roles in the UK healthcare system. Led by Professor Gillian Leng, the review addresses concerns about patient safety, role clarity, and the expansion of these roles within the NHS. The review's recommendations aim to clarify the roles of PAs and AAs, ensure their safe and effective deployment, and improve public understanding of their functions.

The review in full can be read here.

Further information

There are a range of resources for further information on PAAs including