Equipment used Lumbar-puncture tray. X-ray machine with fluoroscope. Small adhesive bandage. Description of test You or a close relative will be required to sign a consent form after the procedure has been explained to you. Follow instructions for positioning your body.
Spinal tap is done.
See Spinal tap. Pressures are recorded, then dye is injected into fluid-filled space that surrounds the spinal cord. You are tilted under the fluoroscope to observe the dye. X-rays are taken. You may be asked to wait a short while until films are developed.