lumbar puncture

noun

1. Medicine/Medical. puncture into the arachnoid membrane of the spinal cord, in the lumbar region, and withdrawal of spinal fluid, performed for diagnosis of the fluid, injection of dye for imaging, or administration of anesthesia or medication.

lumbar puncture

noun

1. med insertion of a hollow needle into the lower region of the spinal cord to withdraw cerebrospinal fluid, introduce drugs, etc

lumbar puncture

1. The insertion of a hollow needle beneath the arachnoid membrane of the spinal cord in the lumbar region to withdraw cerebrospinal fluid for diagnostic purposes or to administer medication.

Word History and Origins

Origin of lumbar puncture¹

First recorded in 1890–95

Example Sentences

It includes daily oral chemotherapy, monthly chemotherapy through her portacath - a small device that's under the skin to give long term access to a vein - and a lumbar puncture every three months.

From BBC

This is done either via a PET brain scan or by having a lumbar puncture.

From BBC

Mass General Brigham experts in neurosurgery, cancer and pathology worked together to develop a rapid, genotyping test that can detect key mutations associated with brain cancers from samples taken during a lumbar puncture.

From Science Daily

Only around 2% of patients have one of the 'gold standard' tests for Alzheimer's - either a specialist PET brain scan or a spinal lumbar puncture.

From BBC

To be eligible for either drug, patients would have to be in the early stages of Alzheimer's and have had a PET scan or lumbar puncture to confirm high levels of amyloid in their brain.

From BBC