You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is All of the following are absolute contraindications for neuraxial anaesthesia, EXCEPT: and explain in detail?
In patients on anticoagulants there is a risk of pressure damage to the cord from bleed/hematoma, so neuraxial anaesthesia is absolutely contraindicated. In shock and fixed output states there is effective reduction in circulating volume due to vasodilation, so neuraxial anaesthesia is again absolutely contraindicated. In bowel perforation there is a theoretical risk of increased parasympathetic activity, peristalsis and peritoneal soiling but is only a relative contraindication for all neuraxial anaesthesia. Ref: Oxford Handbook of Clinical Specialities, Edition 8, Page - 635