Pre-operative assessment



We'll assess your general health and fitness by carrying out tests and investigations.

This pre-operative assessment is done at a nurse-led clinic. If you have more complex medical conditions you may be seen in a clinic led by an anaesthetic consultant.

Before your appointment

Please complete the online pre-operative assessment form which we'll send you. When you have completed the form, we'll contact you with an appointment date and time.

During your appointment

We'll ask you to complete a health questionnaire. This includes questions about:

  • your past and present health
  • previous operations
  • medicines you take

A nursing assistant, nurse or anaesthetist will check your general health and fitness. This could include:

  • checking your blood pressure, pulse, temperature, height and weight
  • a physical examination to listen to your heart and lungs, you may need to partially undress and lie down on the examination couch
  • an electrocardiogram (ECG) to record the rate, rhythm and electrical activity of your heart, this is a simple test that takes about 5 minutes and does not cause any discomfort
  • a spirometry test to measures the volume and speed of the air you can blow out from your lungs. This gives an indication of the capacity of your lungs and how clear your airways are
  • a urine sample to check for any urine infection
  • a swab to check for MRSA bacteria that can cause infections, you'll need any infections treated before you can have surgery

Please ask us if you would prefer to see female or male health professional.

After the first assessment, we may need to carry out further tests including:

After your appointment

Your pre-operative nurse will contact you to let you know the result of your assessment and if you need any more tests.

Last updated: September 2023

Contact us

Guy's Hospital

Phone: 020 7188 4222


Pre-operative assessment clinic, 1st floor, Southwark Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT

Pre-assessment clinic (within diabetes clinic), 3rd floor, Southwark Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT

Pre-assessment clinic (within the vaccination centre), ground floor, Francis House, 9 Kings Head Yard, London SE1 1NA

(PDF 742.95KB)

St Thomas' Hospital

Phone: 020 7188 7188 ext 53165 or 53164

Address: ground floor, Gassiot House, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH

We're open Monday to Friday, 9am to 5pm

Interventional radiology pre-operative assessment

Contact the interventional radiology pre-operative assessment service.

Do you have any comments or concerns about your care?

Contact our Patient Advice and Liaison Service (PALS)

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