A _____________ involves the introduction of a needle into the subarachnoid space of the spinal column.The purpose of the test is to measure pressure in the subarachnoid space; obtain cerebrospinal fluid (CSF)for visualization and laboratory examination; and to inject anesthetic,diagnostic,or therapeutic agents.

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The Answer of A _____________ involves the introduction of a needle into the subarachnoid space of the spinal column.The purpose of the test is to measure pressure in the subarachnoid space; obtain cerebrospinal fluid (CSF)for visualization and laboratory examination; and to inject anesthetic,diagnostic,or therapeutic agents.

A _____________ Involves the Introduction of a Needle into the Subarachnoid