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Doctor insights on: What Sedation Methods Are Available For Adults During A Lumbar Puncture

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What will happen during a lumbar puncture?

What will happen during a lumbar puncture?

Lumbar puncture (LP): Cerebrospinal fluid (CSF) bathes brain & spinal cord (cns). CSF may be abnormal in some diseases. In an lp, you are either on your side or sitting. Md feels lower back for interspace between 4th & 5th lumbar vertebrae, below end of cns. Lidocaine is injected. 3” hollow needle is inserted thru interspace & into sac holding CNS & csf. Md collects CSF (usually ~1 tsp) into 3-4 tubes. CSF sent to lab. ...Read more

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Dr. Ira Katz
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Lumbar (Definition)

The lumbar part of the spine is the low back. It is made up of five bones (most of the time) stacked one on top of the other. They are connected by disks, facet joints, and ligaments. These soft parts allow for movement controlled by the spinal muscles; the muscles can also keep it stiff when need be. The lumbar spine also contains and protects nerves to ...Read more


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Is it normal during a lumbar puncture to feel a zap or jolt down one leg or on one side as they are moving the needle inside?

Is it normal during a lumbar puncture to feel a zap or jolt down one leg or on one side as they are moving the needle inside?

"Normal"?: Having an LP isn't "normal;" it's done to rule in or out an ABnormality. Do the symptoms you report occasionally happen during an LP? Yes. The needle may brush past and stimulate a nerve root. You feel the sensation in the body part from which the nerve root transmits sensory input to the brain. I suppose rarely the needle injures the root but I've never had that happen. ...Read more

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What should normal inter crainal pressure be during my last lumbar puncture my beginning pressure was 38 i was just wondering i also ha e iih?

What should normal inter crainal pressure be during my last lumbar puncture my beginning pressure was 38 i was just wondering i also ha e iih?

Positional: In the side-lying position intracranial pressure as measured during lumbar puncture should be between 100 and 150 cm of water pressure. If pressure is measured while sitting upright, pressure level in fluid column should extend to base of skull (foramen magnum) but numerically will exceed 150. The rest of your question is unclear. Are you asking about a post-spinal headache? ...Read more

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How much cerebro spinal fluid is removed during lumbar puncture ?

How much cerebro spinal fluid is removed during lumbar puncture ?

3-5 cc: Usually routine analysis necessitates between 3 to 5 cc. This is about half a teaspoon to one teaspoon. Some conditions necessitate removing 2 teaspoons and in rare conditions such as hydrocephalus, 20-30 cc may be removed. ...Read more

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About how much cerebro spinal fluid is removed during a diagnostic lumbar puncture ?

Small amount: Typically 1 to 2 tablespoons. If fluid needs to be sent for cytology - looking for abnormal cells, then more fluid is needed. You produce the fluid continuously and whatever fluid is taken out is rapidly replaced. ...Read more

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I am getting a lumbar puncture in a month to test for ms. what should I expect during and the next few days after it?

I am getting a lumbar puncture in a month to test for ms. what should I expect during and the next few days after it?

Could get headache.: It's not unusual to get a post-LP headache, which can feel pretty strong and heavy. It's related to the volume of fluid removed, and is treatable. Not a guarantee, but that could happen. Most people tolerate them just fine. Good luck with everything. ...Read more

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8 days ago I had a lumbar puncture and during the procedure I had a hot burning pain in the lateral thigh that radiated downward. Still on going?

8 days ago I had a lumbar puncture and during the procedure I had a hot burning pain in the lateral thigh that radiated downward. Still on going?

Lumbar puncture pain: A pain (usually sharp) that radiates down the legs is suggestive of a nerve pain. I suggest you go back and discuss this issue with the health care provider who performed the lumbar puncture to make sure that these symptoms are not related to the procedure and that they need to be addressed. ...Read more

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What number of drops of cerebrospinal fluid is collected during lumbar puncture?

Not Drops: When collecting fluid during a lumbar puncture, we don't exactly count drops of fluid. Rather, we count CCs (cubic centimenters). Typically there are 4 tubes. We collect only 1-2 cc in the first and 2-6 in the rest. The amount collected depends on the purpose of the lumbar puncture. Decreasing fluid pressure, having enough fluid for many lab tests are 2 reasons to draw off larger amounts. ...Read more

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A lumbar puncture for a toddler sounds scary. Aren't there new technologies to diagnose meningitis using other methods?

Essential for diagno: lumbar puncture is essential as it provides access to the spinal fluid for culture and a variety of tests that enable doctors to make an appropriate diagnosis. considering how many women have spinal anesthesia for delivery, you should not consider LP to be scary. It is generally a safe and quick procedure. ...Read more

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What does a lumbar puncture actually help to prove?

What does a lumbar puncture actually help to prove?

Spinal fluid answers: The question: does the patient have intracranial bleeding? (presence red cells or xanthochromia) or infection present? (presence of white cells, bacteria, viral culture/antigens) or multiple sclerosis (presence of abnormal proteins). Also a l.P. (lumbar puncture) may show a high opening pressure which is a sign of pseudo-tumor (cause of chronic headaches). L.P. 's are safer now done under xray. ...Read more

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Dr. Dariush Saghafi
372 doctors shared insights

Lumbar Puncture (Definition)

To test for meningitis or multiple sclerosis or a variety of problems, a small needle is inserted into the lumbosacral cistern to obtain spinal fluid for testing ...Read more


Young Health (Definition)

Young Health ...Read more