Diagnostic Lumbar Puncture

Lumbar puncture, also known as a spinal tap, is performed to collect a sample of spinal fluid or check the pressure of fluid in the spinal cord. Our radiologists will use X-ray imaging to precisely guide the procedure. Your doctor may have requested this procedure to find a cause for symptoms you have been experiencing. Lumbar puncture helps to diagnose problems including:

  • Bacterial, fungal and viral infections, including meningitis, encephalitis and syphilis
  • Bleeding around the brain
  • Cancers involving the brain and spinal cord
  • Inflammatory conditions of the nervous system, including Guillain-Barre syndrome and multiple sclerosis

Diagnostic Lumbar Puncture is available at the following Advanced Radiology locations

Call to Schedule: 203-386-3164

Stratford – 2876 Main Street, performed in Advanced Interventional Radiology department


During this procedure, a needle is inserted between two vertebrae to remove or measure cerebrospinal fluid—the fluid that surrounds your brain and spine. You will be given a local anesthetic.

No preparation is required. No aspirin or blood thinners to be taken 5 days prior to the procedure.