HSE IRR medicals for radiation workers in Bristol and South Wales
On-line booking, appointments within 2 days
HSE-compliant medical surveillance for classified workers under the Ionising Radiations Regulations 2017
Clinics in South West and South Wales & on-site throughout the UK
Instant booking; appointments within 2 days
£150 pay-as-you-go; discounts for groups
Booking your IRR medical
Our clinic locations and coverage
Employer preparation
After the booking, our system will guide you to upload:
- Page one of the Health Record
- Sickness absence record for 12 months
- Dose record (for existing classified workers).
Classified workers
Please bring a photographic ID and your current prescription, if applicable. Do not attend if you have a new cough or fever.
Clinic locations
Bristol OH Clinic ›
Serving Bristol, Bradley Stoke, Filton, Avonmouth, M4/M5 area, Keynsham, Bath and Weston-super-Mare
Chepstow (South Wales) OH Clinic ›
Supporting Newport, Cardiff, Cwmbran, Pontypool, Abergavenny and Caldicot.
On-Site IRR medicals (UK-wide)
For groups of 5 or more, we can visit workplaces anywhere in the UK. This ensures time and cost-effective IRR assessments. Please get in touch to discuss your needs.
Book your IRR medical online
or request more information
Learn more about the IRR17 medical examinations
More information about ionising radiation medicals
Medical surveillance for radiation workers
What is an IRR17 medical examination, and why is it needed?
Ionising radiation medicals are a part of medical surveillance for classified workers under the Ionising Radiations Regulations 2017 (IRR17).
The IRR17 medical examinations are undertaken by HSE-appointed doctors. Their purpose is to confirm fitness for work, provide advice and check for early signs of radiation-related health issues
- The initial radiation medical should be done before commencing work with ionising radiation.
- The workers are certified to work with ionising radiation for 12 months or less in case of vulnerabilities.
- In lower-risk cases, after the initial IRR medical, the doctor may offer a remote (paper-based) radiation medical for up to 4 years. Contact us to discuss whether a remote IRR medical may be available.
The IRR17 medical procedure
What to expect during the HSE radiation medical
The assessment takes about 30 minutes. Our HSE-appointed doctor will:
- Review the worker’s medical and work history
- Carry out a brief physical examination and complete health record for the employer
- Discuss the results and explain any radiation risks or safety advice.
Radiation certificate: HSE Health Record
After the medical, the employer will receive an HSE radiation medical certificate (Health Record) with fitness details, restrictions (if any), and an expiry date. We will keep confidential clinical information in the HSE Clinical Record. In lower-risk cases, follow-up medicals may be paper-based for up to 4 years.
Our expertise
Our doctors are appointed by the HSE to undertake IRR medicals, issue health records and process clinical records as ICO-registered data processors.
We have supported classified workers and employers in various sectors, including the nuclear industry, industrial radiography, radiation-based sterilisation, clinical radiotherapy and nuclear medicine, and non-destructive testing. For example, we recently helped an English radiography company assess 20 workers on-site.
Employer duties under IRR2017
Employers must designate classified workers – those who are likely to receive effective whole-body dose >6mSv/year (or equivalent doses exceeding 3/10 of annual limits: 15 mSv to the lens of the eye or 150 mSv to the skin or extremities).
They must provide periodic medical surveillance by an HSE-appointed doctor, enable the appointed doctor to visit the facility and share health records, dose history, and absence records for assessments.

Other core employers’ responsibilities: justify that the benefits of using ionising radiation outweigh the risks; limit worker exposure to as low as reasonably practicable (ALARP); ensure exposure does not exceed legal dose limits; provide appropriate training and personal protective equipment; implement a system of dose monitoring and record-keeping; consult a Radiation Protection Adviser (RPA) and appoint a Radiation Protection Supervisor (RPS) to oversee compliance with local rules and procedures.
Health risks of ionising radiation
Ionising radiation is energy coming from sources like X-rays or sources emitting radiation particles (alpha, beta, neutrons).
It is an occupational hazard in various industries, such as medical imaging (e.g., X-rays, CT scans) and radiotherapy, industrial radiography, nuclear power generation, scientific research, the food industry, and other applications. Ionising radiation can take the form of electromagnetic waves (gamma or X-rays) or particles (alpha, beta, or neutrons).
Ionising radiation health risks
- Direct tissue and organ damage (deterministic or dose-dependent effects). The risk and severity of symptoms increase with the dose of radiation.
These effects appear when a threshold dose is exceeded and are very unlikely to occur at the annual dose limit.
Some deterministic effects include skin burns, hair loss, cataracts, changes to blood cells, and reduced fertility. Very high doses during unexpected exposures may lead to acute radiation syndrome (with nausea, anaemia, multiorgan failure, and death).
These risks from occupational exposures are considered low due to strict regulatory controls. - Stochastic (non-dose-dependent) effects. These have no threshold, but their probability increases with dose.
The main examples include increased risk of cancer, particularly leukaemia and solid tumours. It is important to remember that these figures are relatively low compared with the general lifetime risk of cancer in the UK (i.e., approximately 40-50%).

The period between exposure and the health effects (latency) of radiation-induced cancers can range from a few years to several decades. No safe dose and long latency underpin the importance of regular dosimetry, training, and long-term medical surveillance and record-keeping.
HSE Reference Documents
Work with ionising radiation is regulated by the Ionising Radiations Regulations 2017, and enforced by the Health and Safety Executive (HSE). For more detailed information about ionising radiation risks, controls, and regulations, please visit the HSE’s ionising radiation pages.
HSE: Introduction to Radiation in the Workplace
HSE: Ionising radiation, protecting workers
HSE Guidelines for expectant or breastfeeding mothers (HSE INDG334)
HSE Ionising Radiation Regulations 2017, Approved Code of Practice (I121)
Medicals for radiation workers: Frequently Asked Questions
What is an IRR17 medical examination?
It is a mandatory health check (medical surveillance) for classified radiation workers under the Ionising Radiations Regulations 2017. It is conducted by HSE-appointed doctors.
Can I book an urgent radiation medical?
Yes, we offer urgent radiation medical appointments within 1-2 days. Please book online now or get in touch.
Where can I get an IRR medical certificate?
Our HSE-appointed doctors issue certificates at clinics in Bristol, South Wales, or on-site UK-wide. Results will be shared with your employer immediately after the assessment.
How much does radiation health surveillance cost?
The cost of radiation medical surveillance is £150 per individual IRR medical. We offer group discounts.
What does an HSE radiation medical certificate include?
An HSE radiation medical certificate (Health Record) outlines fitness for work, any restrictions, and an expiry date.
How often are IRR17 medical examinations required?
Classified workers require annual checks. After the first exam, low-risk cases may qualify for 4 years of remote (paper-based) reviews.