Precautions For Lumbar Puncture Needle
Jun 09, 2018
1. Strictly grasp the contraindications. Fundus examination must be done for those suspected of having increased intracranial pressure. If there is obvious papilledema or a sign of brain herniation, puncture is contraindicated.
2. All patients in shock, exhaustion or endangered state, local skin inflammation, space-occupying lesions in the posterior cranial fossa or accompanied by brainstem symptoms are contraindicated for puncture.
3. The needle should be inserted slowly after piercing the subcutaneous tissue, so as not to stab the cauda equina or blood vessels when the force is too strong, resulting in pain in the lower extremity or mixing the cerebrospinal fluid with the blood to affect the judgment of the result.
4. If the patient has symptoms such as abnormal breathing, pulse, and complexion during puncture, the operation should be stopped immediately and corresponding treatment should be made.
5. During intrathecal administration, the same amount of cerebrospinal fluid should be released first, and then the drug should be injected.
6. When doing gas brain examination, 10 ml of liquid should be slowly discharged first, then 10 ml of filtered air should be injected, and the film should be taken when the required amount is repeated.
7. The speed of cerebrospinal fluid release should not be fast, generally 10-15 drops/min. Patients with normal intracranial pressure should not release more than 5ml of cerebrospinal fluid at a time to prevent the formation of brain herniation.
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