Anaesthetics are given to prevent the patient from feeling any sensation during a surgical or diagnostic procedure. Anaesthetics does this by slowing down or blocking signals that pass along the nerves to the brain. There are two types of anaesthesia: local anaesthesia and general anaesthesia. In local anesthesia, the anaesthetic numbs a small area of the body. However, in general anaesthesia, the person becomes unconscious. Local anaesthetics are either topical, meaning they are applied on the skin, or injectable; they are injected into the area that is supposed to be treated, so the patient can’t feel the pain. Local anaesthesia is administered in small procedures such as lumbar puncture, skin biopsy, and tooth extraction. A 3ml syringe is supplied with the standard lumbar puncture kit, however, a 10ml syringe is beneficial because it is recommended to anaesthetize the area around the L3-L4 interspace including the interspaces above and below incase the spinal needle needs to be redirected during a lumbar puncture.