The key to how much a cerebrospinal fluid test costs is what cerebrospinal fluid tests were done. If only a lumbar puncture is done, the cost is about$300. If local anesthesia is used, the cost of anesthesia is about$50. If intracranial pressure is measured during the procedure, there is an additional charge of$100. Laboratory tests for cerebrospinal fluid include cerebrospinal fluid biochemistry and routine cerebrospinal fluid tests. These two tests cost about$400 in a typical tertiary-level public hospital. If the patient needs to do protein electrophoresis of cerebrospinal fluid in addition because of his condition, the cost is about 1,000 yuan. If intracranial infection is suspected, bacteriological culture and drug sensitivity test of the cerebrospinal fluid are required, and another 500 yuan will be added.