lumbar puncture

lumbar puncture
a procedure performed under local anaesthetic in which cerebrospinal fluid is withdrawn by means of a hollow needle inserted into the subarachnoid space in the region of the lower back (usually between the third and fourth lumbar vertebrae). The fluid obtained is examined for diagnosis of meningitis, multiple sclerosis, and various other disorders of the brain and spinal cord. Lumbar puncture may also be perfomed to inject agents into the subarachnoid space. The procedure is usually without risk to the patient, but in patients with raised intracranial pressure it may be hazardous. CT and MRI scanning prior to lumbar puncture have greatly reduced the risk of performing the test in patients with unsuspected raised intracranial pressure. The commonest side-effect of the procedure is a headache that is worse on standing and reduces on lying down.

The new mediacal dictionary. 2014.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Lumbar puncture — Intervention A patient undergoes a lumbar puncture at the hands of a neurologist. The reddish brown swirls on the patient s back are tincture of iodine (an antiseptic). ICD 9 CM …   Wikipedia

  • lumbar puncture — noun count a medical treatment or test in which a needle is used to INJECT medicine or take liquid from your SPINE …   Usage of the words and phrases in modern English

  • Lumbar puncture — A lumbar puncture or "LP" is a procedure whereby spinal fluid is removed from the spinal canal for the purpose of diagnostic testing. It is particularly helpful in the diagnosis of inflammatory diseases of the central nervous system,… …   Medical dictionary

  • lumbar puncture — noun removal by centesis of fluid from the subarachnoid space of the lumbar region of the spinal cord for diagnostic or therapeutic purposes • Syn: ↑spinal puncture, ↑spinal tap • Hypernyms: ↑centesis * * * ˌlumbar ˈpuncture [lumbar puncture] …   Useful english dictionary

  • lumbar puncture — Med. 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. Also called… …   Universalium

  • lumbar puncture — UK / US noun [countable] Word forms lumbar puncture : singular lumbar puncture plural lumbar punctures medical a medical treatment or test in which a needle is used to inject medicine into or take liquid from your spine …   English dictionary

  • lumbar puncture — n. to do, perform a lumbar puncture * * * perform a lumbar puncture to do …   Combinatory dictionary

  • lumbar puncture headache — headache occurring a few hours after lumbar puncture, due to lowering of intracranial pressure after leakage of cerebrospinal fluid; see also post–lumbar puncture syndrome. Called also post–dural puncture, post–lumbar puncture, postspinal,… …   Medical dictionary

  • lumbar puncture — noun Date: 1895 puncture of the subarachnoid space in the lumbar region of the spinal cord to withdraw cerebrospinal fluid or inject anesthetic drugs …   New Collegiate Dictionary

  • lumbar puncture — /ˈlʌmbə pʌŋktʃə/ (say lumbuh pungkchuh) noun the insertion of a hollow needle between the lumbar vertebrae into the spinal cord to draw off some of the cerebrospinal fluid, to inject drugs, etc …  

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”