Question: What Is A Normal Lumbar Puncture Result?

How do you read lumbar puncture results?

Interpretation of CSF results from lumbar puncture (LP)Appearance: Clear.Opening pressure: 10-20 cmCSF.WBC count: 0-5 cells/µL.

< 2 polymorphonucleocytes [PMN]) ...

Glucose level: >60% of serum glucose.Protein level: < 45 mg/dL.Consider additional tests: CSF culture, others depending on clinical findings..

What can be diagnosed from a lumbar puncture?

A lumbar puncture can help diagnose serious infections, such as meningitis; other disorders of the central nervous system, such as Guillain-Barre syndrome and multiple sclerosis; or cancers of the brain or spinal cord.

Does high protein in CSF mean MS?

Cerebral Spinal Fluid Studies Oligoclonal Immunoglobulin Bands can be identified in the CSF of MS patients via electrophoresis. The overall protein level is also slightly elevated – up to 0.1 g/L. Protein level can be higher if the patient is going through a marked relapse (i.e.,. severe optic neuritis).

What is the best position after lumbar puncture?

As blood will distribute into the epidural space through few spinal segments superiorly and inferiorly, it is not essential to introduce it into the exact place at which the dural puncture was performed. After the procedure, the patient is asked to lie still for 1–2 h in a supine position and is then mobilised.

What do they look for in CSF for MS?

Detection of oligoclonal immunoglobulin bands in the CSF is now established as the single most useful laboratory marker in the CSF to aid in the diagnosis of multiple sclerosis. Markers of demyelination, remyelination, neuro-axonal loss, neural repair and regeneration, and astrogliosis are only now being recognized.

What is normal CSF cell count?

Normally, there are no RBCs in the cerebrospinal fluid, and there should be no more than five WBCs per cubic millimeter of CSF. If your fluid contains RBCs, this may indicate bleeding. It is also possible that you had a traumatic tap (blood leaked into the fluid sample during collection).

What is considered high protein in CSF?

EVALUATION. Spinal fluid protein concentration is usually moderately elevated, with concentrations in the 150 to 300 mg/100 mL range.

Why is protein elevated in CSF?

Elevated CSF protein is seen in infections, intracranial hemorrhages, multiple sclerosis, Guillain Barré syndrome, malignancies, some endocrine abnormalities, certain medication use, and a variety of inflammatory conditions (Table 3).

What does glucose in spinal fluid mean?

Normal results mean that your CSF glucose levels are within normal range. However, normal results don’t rule out the possibility of infection. Glucose is often normal in people with viral infections and bacterial meningitis. Your doctor may order tests if they’re concerned that you may have an infection.

Does a lumbar puncture confirm MS?

A lumbar puncture is a common test used to diagnose MS, and it’s a relatively simple test to perform. It’s generally the first step in determining if you have MS if you’re showing symptoms. Your doctor will determine whether further tests are needed to confirm a diagnosis.

Can a spinal tap confirm MS?

So a spinal tap by itself can’t confirm or rule out a diagnosis of multiple sclerosis. It must be part of the total picture of testing for the disease.

What diseases can be found in spinal fluid?

A CSF analysis may include tests to diagnose:Infectious diseases of the brain and spinal cord, including meningitis and encephalitis. … Autoimmune disorders, such as Guillain-Barré Syndrome and multiple sclerosis (MS). … Bleeding in the brain.Brain tumors.

When should you not have a lumbar puncture?

Relative contraindications for lumbar puncture include the following: Increased intracranial pressure (ICP) Coagulopathy. Brain abscess.

How do you check for a CSF leak at home?

A pledget study involves placing small cotton pads (called “pledgets”) into the nose. This test is used to confirm the presence of a CSF leak, although it cannot determine the exact location of the leak. To determine the exact location of the leak, a CT cisternogram would be performed.

What drugs can be detected in a spinal tap?

Classes of drugs evaluated in this study included: benzodiazepines, anticonvulsants, sedatives, opioids, antidepressants, anesthetics, and antihistamines. The majority of the drugs tested were readily detected in CSF specimens.

What level should a lumbar puncture be?

It is important to insert the spinal needle below the conus medullaris at the L3/L4 or L4/L5 interspinous levels. With growth of the spine, the conus typically reaches the adult level (L1) by 2 years of age.

What is a normal CSF protein level?

The normal protein range varies from lab to lab, but is typically about 15 to 60 milligrams per deciliter (mg/dL) or 0.15 to 0.6 milligrams per milliliter (mg/mL).

What do lymphocytes in CSF mean?

The term “Aseptic Meningitis” denotes a clinical syndrome with a predominance of lymphocytes in the cerebrospinal fluid (CSF), with no common bacterial agents identified in the CSF. Viral meningitis is considered the main cause of lymphocyte meningitis. There are other etiologies of an infectious nature.

What is normal CSF glucose?

Note that normal concentration of glucose in CSF samples is 45-80 mg/dL or 60-80% of that in the plasma (for glucose plasma concentrations less than 400 mg/dL).

What does white blood cells in spinal fluid mean?

An increase of white blood cells indicates infection, inflammation, or bleeding into the cerebrospinal fluid. Some causes include: Abscess. Encephalitis. Hemorrhage.

Is lumbar puncture painful?

A lumbar puncture is usually not painful, as a patient is first given a local anesthetic. Most patients feel nothing except for the mild sting of the local anesthetic needle. It is possible to feel a pressure sensation as the needle goes in.