Category Archives: Clinical Anaesthesia

Learning from your anaesthesia assistant/nurse

I remember one stressful case of a patient who was septic, and suffering a post partum haemorrhage. After induction of anesthesia, the patient’s blood pressure dropped precipitously requiring large doses of inotropes. She developed a rash and bronchospasm signifying likely anaphylaxis. How could this unlucky patient have so many complications? We stepped into crisis mode […]

Unresponsive Hypotension

You induce a 60yo male for an aorto-bifemoral bypass with severe leg claudication. He has the expected past history of ischaemic heart disease (STEMI 5 years ago – stents + medical management), diabetes, hypertension, and was a 20-pack year ex-smoker. After a reasonably stable induction, his blood pressure continues to need vasopressor. You administer escalating […]

What is Hypokalaemia and why is it important?

Definition Hypokalaemia simply means low blood potassium (K+). Mild hypokalaemia refers to a serum potassium concentration of under 3.5mmol/L Severe hypokalaemia indicates less than 2.5mmol/L of potassium in the blood. Potassium is split between intracellular (98%, ~150mmol/L K+ concentration) and extracellular (2%, ~4-5mmol/L concentration) compartments. Potassium ions are the main intracellular cation and carry an […]

ABCs guide to crisis management

Imagine it’s your first month in anaesthesia. 30mins into an elective laparoscopic cholecystectomy your consultant goes for a tea break and leaves you in theatre alone with the patient. The patient’s saturations suddenly fall to 90% just as the BP comes back at 70/30! What do you do? This is obviously a challenging situation for […]

The Pre-anaesthesia Checklist for any Induction

When you first arrive in theatre it is reasonably rare that everything isn’t ready for the fist patient to be induced. Engineering has performed their complicated checks on the machine, and the nurses have a very thorough system by which all the most important equipment and medications for safe anaesthesia have already been checked and […]

ABCs Guide to Anaesthesia Medications

What’s so special about anaesthesia meds? Anaesthesia medications are some of the most effective and deadly medications available for human consumption. Fortunately when used by an anaesthetist, they are remarkable safe and effective. Through the 5 years of formal anaesthesia training you end up using a unique group of medications on a daily basis and […]

A basic guide to preoperative assessment

Preoperative assessment - operation theatre

What is the preoperative assessment and what is its purpose? A consultation performed by an anaesthetist prior to administration of anaesthesia. The aim of the pre-operative consult is to minimize perioperative mortality & morbidity and prevent last minute unplanned cancellation through proper assessment and decision-making. To do this we assess with a history, examination and […]