A spinal tap is a procedure performed when a doctor needs to look at the cerebrospinal fluid (also known as spinal fluid). Advertising revenue supports our not-for-profit mission.Write down questions that you want to ask your doctor.
His natural ability to do [...]Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.A lumbar puncture may be done to:Before your lumbar puncture, your doctor asks questions about your medical history, does a physical exam, and orders blood tests to check if you have any bleeding or clotting disorders.
Your doctor may suggest lying down after the procedure.If a child is having a lumbar puncture, a parent is usually allowed to stay in the room. Examples include warfarin (Coumadin, Jantoven), clopidogrel (Plavix), and some over-the-counter pain relievers such as aspirin, ibuprofen (Advil, Motrin IB, others) or naproxen sodium (Aleve).
A lumbar puncture (LP) is the insertion of a needle into the spinal canal to collect and examine the fluid that surrounds the brain and spinal cord (cerebral spinal fluid). You'll likely be asked not to eat or drink anything after midnight before your procedure.For an infant or young child, someone will hold the child in position during the procedure.The headache typically starts several hours up to two days after the procedure and may be accompanied by nausea, vomiting and dizziness.
Questions you may want to ask include:Tell your doctor if you're taking blood-thinning or other anticoagulant medications.
The ultrasound can help prevent inserting the needle too far.Mayo Clinic does not endorse companies or products. A lumbar puncture, or spinal tap, is a common neurological procedure in which a needle is inserted in between the bones of your lower back, called the lumbar region. Lab technicians check for a number of things when examining spinal fluid, including:Your health care provider generally gives you the results within a few days, but it could take longer. Usually, you lie on your side with your knees drawn up to your chest, or you sit and lean forward on a stable surface.
These positions flex your back, widening the spaces between your vertebrae and making it easier for your doctor to insert the needle.Though lumbar punctures are generally recognized as safe, they do carry some risks. A lumbar puncture may cause a number of side effects and complications, but it is a routine procedure. If you are unable to reach your doctor, then you should seek immediate attention from your local emergency department.Although very infrequent, several complications can occur as a result of a spinal tap. Don't hesitate to ask questions during your visit. See the stories of satisfied Mayo Clinic patients.The spinal fluid samples are sent to a laboratory for analysis. Please describe your experience.Any signs or symptoms of infection or severe headache should prompt immediate attention from your doctor. For this procedure, your healthcare provider inserts a hollow needle into the space surrounding the spinal column (subarachnoid space) in the lower back to withdraw some cerebrospinal fluid (CSF) or inject medicine. Then a needle is inserted into your spinal canal — in your lower back — to collect cerebrospinal fluid for testing.A single copy of these materials may be reprinted for noncommercial personal use only.
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spinal tap procedure