Secondary causes of cardiac arrest in the Surgical Patient hypoxia / anoxia - raised potassium, asystole hypercapnia - raised catecholamines, raised potassium, reduced pH → reduced contraction and conduction anaesthetics - especially high-dose volatile vagal reflex mechanisms surgical instrumentation dilation of cervix traction on inferior rectus respiratory tract hyperkalaemia sudden increase → VF slow increase … Continue reading Cardiac Arrest in the Surgical Patient