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

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?

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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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 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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Should a lumbar puncture be done in a fused area of the back?

More difficult: The fused area sometimes does not have as clear an anatomy ...... It will be harder to get the needle where it needs to go. If there is quite a lot of bone overlying the area, i will not be able to get him the pca. ...Read more

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What is a lumbar puncture like and how come you have to lie on your back afterwards?

Spinal tap: This is a procedure for evaluation of the fluid that bathes the spinal cord and allows the brain to float. It can be done with or without x-ray. You have to lie on your back because the hole that is made by the needle to draw the fluid out needs to seal. If you sit up, gravity will allow too much fluid to drain and your brain will sink. This may cause bad headaches and occasionally brain bleed. ...Read more

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Can a lumbar puncture paralyze me?

Can a lumbar puncture paralyze me?

Rarely: I have seen this happen twice in the span of my medical career, both instances in which the performing physician was not aware of the patients' use of blood thinners. Hematomas formed and extended upward from the "safe" levels of lumbar puncture up to the spinal cord. ...Read more

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Would heat help after a lumbar puncture?

Take it easy: Take it easy, drink plenty of fluid and try to do some walking. Any discomfort should resolve in a day or two. Good luck. ...Read more

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Is a lumbar puncture needed to diagnose ms?

Not usually: These days, MRI films are typically sufficient but LP may be used if diagnosis is unclear ...Read more

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I got a spinal tap / lumbar puncture today?

If you have a: Specific question about the procedure or symptoms afterwards then please clarify and re-ask the question. ...Read more

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What is a spinal tap / lumbar puncture like?

Not bad: A small needle prick in the small of the back then some pressure and that is about it. ...Read more

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What are the side effects of a lumbar puncture?

Headache, bleeding: The most common side effect of a lumbar puncture is headache due to the drop in cerebrospinal fluid pressure. This normally resolves in a few days with fluids and rest, but sometimes requires a second procedure called a blood patch before it resolves. Lp can also cause bleeding and infection, although these are much more rare. ...Read more

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Should lumbar puncture be performed on my infant?

Should lumbar puncture be performed on my  infant?

It depends: A lumbar puncture (LP) or spinal tap is a method for obtaining a sample of cerebral spinal fluid (csf). CSF is the fluid that surrounds the brain and spinal cord. An LP is usually done a part of a 'septic workup', in order to see if an ill person has meningitis. If your infant does have meningitis, it is important to know what is causing the infection and how best to treat that infection. ...Read more

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Dr. Dariush Saghafi
379 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