How much is a lumbar puncture

Usually people often say that the injection is sick, which refers to the intramuscular injection, and the injection site is in the most developed muscle, such as the gluteus maximus of the buttocks. The lumbar puncture is also a needle, which is located in the space of the lumbar spine, but the needle is longer than the muscle needle. Lumbar puncture is mainly a method used to aspirate a small amount of cerebrospinal fluid for experimental examination for the diagnosis of certain diseases. For example, head disease, infection, hemorrhage, tumor, or some unexplained coma or convulsion, brain trauma, brain parasites and other diseases. Lumbar puncture can also be used for pneumoencephalography or myelography; it can also be used for anesthesia (ie spinal anesthesia), such as commonly used in lower body surgery. In addition, lumbar puncture can also be used for treatment, such as intrathecal injection of drugs. Cerebrospinal fluid is an extracellular fluid in which the brain and spinal cord are soaked. Therefore, pathological changes in the brain, spinal cord, cerebrospinal membrane and blood vessels can change the pressure and composition of cerebrospinal fluid, so a small amount of cerebrospinal fluid collected by lumbar puncture is helpful for diagnosis. Cerebrospinal fluid is generated by blood circulation, filtered by choroid plexus capillary endothelial cells and intracerebral capillary endothelial cells, and distributed in the ventricular system and subarachnoid space. The total amount of cerebrospinal fluid in adults is 150 ml on average, and the average production rate is 0.35 ml per minute. Calculated based on the total amount of cerebrospinal fluid of 150 ml, it can be replaced about every 8 hours. It can be seen that the cerebrospinal fluid is replaced rapidly, indicating that 1 ml of cerebrospinal fluid extracted during lumbar puncture will not cause any damage to the body. So, how does the patient cooperate with the lumbar puncture? The most important thing is that the body position must be correct. In order to widen the gap between the lumbar and lumbar vertebrae as much as possible, you should take the lateral position and try your best to bend the waist backward, and make the head and knees as close as possible - in a "shrimp" shape. Do not move when the needle tip hits the nerve or the needle breaks, causing serious consequences. The cost is about 100 yuan

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