Description
Why It’s Done:
This test is typically used to:
• Detect and monitor neuroendocrine tumors, such as neuroblastoma, medullary thyroid carcinoma, or small cell lung carcinoma that may affect the central nervous system.
• Assess the extent of neuronal damage following conditions like traumatic brain injury, stroke, or hypoxic brain injury.
• Aid in the diagnosis and monitoring of brain tumors, including gliomas or metastatic cancers affecting the brain or spinal cord.
• Support evaluation in suspected cases of encephalitis or other CNS infections where neuronal damage is a concern.
Preparation:
• No specific preparation is usually required.
• The test involves a lumbar puncture (spinal tap) to collect CSF:
o Local anesthesia is used to minimize discomfort.
o You’ll need to remain still during the procedure to ensure accurate sampling.
o After the procedure, you may be advised to lie flat for some time to reduce the risk of post-lumbar puncture headache.
• Inform your doctor if you:
o Are taking anticoagulants (blood thinners).
o Have any bleeding or clotting disorders.
o Have had spine surgery or structural spinal issues
