Pre Anaesthetic Instructions


Your safety is central to everything we do. As such, we want to ensure that you have not eaten or drunk anything prior to your surgery as specified below. The rationale for pre-operative fasting is that all sedative and anaesthetic drugs will impair the protective reflexes that prevent stomach contents from being regurgitated into your lungs (“aspiration”). Aspiration can cause very serious illness, and one of the ways we minimise this risk is to ensure you are appropriately fasted.

Adults:  all food and fluids should be stopped 6 hours prior to your admission time (including sweets, chewing gum and ice blocks). If you see your Anaesthetist pre-operatively at a Clinic in the rooms you may be given slightly different instructions and these should be closely followed.

Children: please contact your anaesthetist for fasting instructions


Most regular medications should be taken on the day of surgery with a sip of water if necessary.

You should contact your anaesthetist for advice regarding the following medications:

  • Insulin
  • Diabetes medications
  • Warfarin
  • Aspirin should be stopped 10 days prior to surgery


It is advisable to cease smoking as early as possible prior to surgery.

Sleep Apnoea

It is important to advise your anaesthetist if you have sleep apnoea. If you are unsure as to whether you should bring any aids for example your C-Pap machine to hospital please contact your Anaesthetist for advise.

Discharge Instructions For Day Surgery Procedures

To be discharged home on the same day of surgery, the minimum requirements that are necessary are that:

  • You are medically fit with low risk of complications and have demonstrated an ability to understand post operative instructions.
  • You have a responsible adult to accompany you home who can stay overnight.
  • Transport home must be suitable (ie. not by bus/train or driving yourself).
  • You have ready access to a telephone and do not live more than one (1) hour from medical care.

Previous Weight Loss Surgery

Patients who have had previous bariatric surgery should advise their Anaesthetist before surgery. This applies to all patients having procedures where vomiting is possible, that is, patients having general anaesthesia or those who might need stong painkillers after their procedure. It is not usually necessary to have the band deflated if you are planning a mionor procedure under local anaesthetic or sedation, and not normally required for an endoscopy or colonoscopy.

Please contact us if you are unsure and your Anaesthetic will advise what is required.

Pacemakers Or Implantable Defibrillators

Please advise your Anaesthetist well in advance if you have a pacemaker or defibrillator. It is generally necessary to make arrangements with the device technician to have the implant deactivated for the duration of the surgery.

Fingernails – Painted, Acrylic Or Gel

Please contact your Anaesthetist for advise as to whether you should remove any nail polish, false nails etc.

Contact Us 08 9381 9100 08 9388 3019

Visit Us Suite 326, St John Of God Hospital - Medical Clinic
25 McCourt St
Subiaco, WA 6008