The epidural space puncture testing tube is characterized by being similar to the common syringe in structure and comprising a syringe tube, a piston, a gasket, a spring and a hand-held handle.
其特征是其结构与普通注射器相似，包括：注射器管、活塞、衬垫、弹簧、手持柄。
The simplest explanation is that the epidural needle is not actually in the epidural space at the time of attempted spinal puncture.
最简单的解释是腰麻时硬膜外针未在硬膜外间隙。
For severe headache, a "blood-patch" epidural injection should be performed. This involves injecting 5-10 ml of the patient's blood into the epidural space at the site of the previous lumbar puncture.
对于严重的头痛应施行“血液缀片”硬膜外腔注入术，就是将5 - 10ml病人的血液经原腰区穿刺处注入硬膜外腔。
A lumbar puncture is a relative contraindication if a spinal epidural abscess is suspected, because infectious agents may be introduced into the subarachnoid space.
当怀疑脊髓硬膜外脓肿时，腰椎穿刺术是相对的禁忌症，因为病原体可能会被引入到蛛网膜下腔。
A lumbar puncture is a relative contraindication if a spinal epidural abscess is suspected, because infectious agents may be introduced into the subarachnoid space.
当怀疑脊髓硬膜外脓肿时，腰椎穿刺术是相对的禁忌症，因为病原体可能会被引入到蛛网膜下腔。
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