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Pre-Anaesthetic Assessment
Pre-Anaesthetic Assessment is a comprehensive medical evaluation conducted by an anaesthesiologist before planned surgery - identifying medical risk factors, optimising your health before the procedure, designing the safest anaesthetic plan, and ensuring you are fully informed and prepared for your surgical experience.
Overview
Pre-Anaesthetic Assessment is a structured clinical consultation that allows the anaesthesiologist to thoroughly review your medical history, current medications, previous anaesthetic experiences, and organ system function before surgery. Blood tests, ECG, chest X-ray, spirometry, echocardiogram, and specialist referrals are arranged where clinically indicated to investigate and optimise any identified risk factors before the procedure date. The assessment also provides the essential opportunity for the patient to ask questions, understand the planned anaesthetic, and give informed consent - transforming anxiety into informed confidence.
Types of Pre-Anaesthetic Assessment
The depth and format of assessment is tailored to the complexity of the planned surgery and the patient's medical background.
- Standard Pre-Operative Assessment Clinic (face-to-face or telemedicine for routine elective surgery)
- High-Risk Anaesthesia Assessment (for complex cardiac, respiratory, or multisystem disease)
- Obstetric Anaesthesia Assessment (for pregnant patients with significant medical comorbidities)
- Paediatric Pre-Anaesthetic Assessment (for children and families before elective surgery)
- Emergency Assessment (rapid perioperative assessment before urgent or emergency surgery)
- Chronic Pain Pre-Operative Assessment (for opioid-tolerant patients requiring special analgesic planning)
Risk Factors Identified During Pre-Anaesthetic Assessment
These are the conditions most commonly identified and optimised during pre-anaesthetic assessment before proceeding to surgery.
- Uncontrolled hypertension requiring blood pressure optimisation before anaesthesia
- Poorly controlled diabetes with high HbA1c requiring pre-operative glycaemic optimisation
- Significant cardiac disease requiring cardiology review and possible further investigation
- Severe obstructive sleep apnoea requiring CPAP therapy before elective procedures
- Anaemia requiring investigation, treatment, or pre-operative blood conservation planning
- Obesity requiring individualised airway planning and positioning risk mitigation
Indications for Pre-Anaesthetic Assessment
All patients scheduled for elective surgery benefit from pre-operative assessment, but specialist anaesthetic assessment is particularly important for these clinical scenarios.
- Patients with significant cardiac disease - angina, heart failure, recent MI, valvular disease
- Patients with severe respiratory disease - COPD, asthma, pulmonary fibrosis
- Patients on anticoagulant or antiplatelet therapy requiring a bridging plan
- History of previous difficult intubation or adverse anaesthetic reaction
- Patients scheduled for major or prolonged surgery with high physiological demand
- Elderly patients with multiple comorbidities requiring comprehensive risk assessment
- Obese patients (BMI above 40) requiring airway planning and positioning strategy
- Patients requiring specific blood conservation strategies - Jehovah's Witnesses, complex coagulopathy
Key Benefits
Discover the advantages of choosing our pre-anaesthetic assessment services.
Proactive identification and optimisation of medical conditions reduces perioperative complications
Complete information about the anaesthetic eliminates anxiety from uncertainty on the day of surgery
Written medication plan prevents dangerous medication errors in the perioperative period
Early identification of complex airway allows specialist resources to be arranged in advance
Patients arrive fully prepared with all investigations complete and fasting instructions confirmed
Clinical Features
The technology, techniques and clinical approach behind our pre-anaesthetic assessment.
Systematic multi-system assessment identifies all conditions requiring optimisation
Targeted investigations avoid unnecessary tests while ensuring all risk factors are assessed
Written medication management plan provided to patient and GP reducing perioperative errors
Airway assessment documented with plan and backup strategies before the day of surgery
High-risk patients identified for senior anaesthesiologist and intensive monitoring
Preparation Instructions
Complete any recommended investigations or specialist consultations promptly - delays may postpone your surgery date. Follow the medication management instructions precisely - particularly regarding blood thinners, diabetes medications, and blood pressure tablets. If your health changes significantly between the assessment and your surgery date (new hospital admission, new diagnosis, or change in medications), contact the pre-assessment clinic immediately so the anaesthetic plan can be updated.
The Procedure
Step-by-step guide to what you can expect during your pre-anaesthetic assessment procedure.
Medical History and Systems Review
A comprehensive review of cardiac respiratory renal hepatic neurological haematological and endocrine systems identifies any conditions increasing anaesthetic risk or requiring optimisation before the planned procedure.
Airway Assessment and Risk Stratification
Mouth opening neck mobility Mallampati score jaw structure and teeth are assessed -- identifying predictors of difficult airway management and planning the most appropriate technique before the day of surgery.
Medication Review and Perioperative Plan
Every medication is reviewed -- anticoagulant bridging plan diabetic medication adjustment cardiovascular drug continuation herbal supplement cessation. A clear written medication management plan is provided to patient and GP.
Investigations Ordering and Review
Blood tests ECG chest X-ray echocardiogram spirometry and specialist consultations are arranged based on medical background and surgical risk -- targeting only investigations that will change anaesthetic management.
Informed Consent and Patient Education
The planned anaesthetic technique is explained in accessible language. Risks benefits and alternatives are discussed. Questions are answered fully. Written information is provided for the patient to review at home.
Optimisation Referral and Coordination
Where conditions require optimisation -- uncontrolled hypertension poorly controlled diabetes severe anaemia significant cardiac disease -- urgent referrals are made and the surgical date adjusted to ensure safe theatre readiness.
What to Expect
Your anaesthesiologist conducts a thorough medical history and examination, reviews all investigation results, and discusses the planned anaesthetic technique with you. Any additional investigations needed are arranged promptly. The assessment typically takes 30 to 60 minutes. You will leave with a clear understanding of what anaesthetic is planned, the fasting instructions, medication management plan, and answers to all your questions.
Frequently Asked Questions
Common questions about pre-anaesthetic assessment.
Related Services
Explore other services in our Anaesthesiology department.
General Anaesthesia
Spinal Anaesthesia
Epidural Anaesthesia
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