Which ED procedure is used to obtain cerebrospinal fluid or administer intrathecal medications?

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Multiple Choice

Which ED procedure is used to obtain cerebrospinal fluid or administer intrathecal medications?

Explanation:
Accessing the cerebrospinal fluid and delivering medications into the intrathecal space is accomplished with a lumbar puncture. By guiding a sterile needle into the lower back between the vertebrae (typically L3-L4 or L4-L5) and through the dura, the clinician reaches the subarachnoid space to obtain CSF for analysis or to administer intrathecal medications. This is how CSF studies are performed (opening pressure, cells, glucose, protein) and how certain therapies—antibiotics, chemotherapeutics, or spinal anesthetics—are given directly into the CSF. Other ED procedures serve different purposes: one is used for eye examination, another to drain abscesses, and another to restore normal heart rhythm.

Accessing the cerebrospinal fluid and delivering medications into the intrathecal space is accomplished with a lumbar puncture. By guiding a sterile needle into the lower back between the vertebrae (typically L3-L4 or L4-L5) and through the dura, the clinician reaches the subarachnoid space to obtain CSF for analysis or to administer intrathecal medications. This is how CSF studies are performed (opening pressure, cells, glucose, protein) and how certain therapies—antibiotics, chemotherapeutics, or spinal anesthetics—are given directly into the CSF. Other ED procedures serve different purposes: one is used for eye examination, another to drain abscesses, and another to restore normal heart rhythm.

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