Quick Answer: What Are Normal CSF Values?

What is normal CSF opening pressure range?

What is a Normal Opening Pressure.

The normal range for CSF is reported differently in various sources, with most reporting a normal range of 7-18 cmH2O in adults,1 though some consider the normal range 5-25 cmH2O.

However, a pressure >25 cmH2O or <5 cmH2O should certainly prompt you to look for a source..

What causes high glucose in CSF?

Chemical meningitis, inflammatory conditions, subarachnoid hemorrhage, and hypoglycemia also cause hypoglycorrhachia (low glucose level in CSF). Elevated levels of glucose in the blood is the only cause of having an elevated CSF glucose level.

What are normal lumbar puncture results?

Normal lumbar puncture (LP) cerebrospinal fluid (CSF) findings include the following: Appearance: Clear. Opening pressure: 10-20 cm H2 O. WBC count: 0-5 cells/µL (< 2 polymorphonucleocytes [PMN]); normal cell counts do not rule out meningitis or any other pathology.

What is abnormal CSF?

CSF usually contains a small amount of protein and glucose and may have a few white blood cells. Any condition that disrupts the normal pressure or flow of CSF or the protective ability of the blood-brain barrier can result in abnormal results of CSF testing.

What do CSF results mean?

Your CSF analysis results may indicate that you have an infection, an autoimmune disorder, such as multiple sclerosis, or another disease of the brain or spinal cord. Your provider will likely order more tests to confirm your diagnosis.

What is the normal percentage of lymphocytes in CSF?

Normal WBC count in CSF is < 5 cells/µl. In differential count, mononuclear cells should predominate (60-70% of it being small lymphocytes and 30-40% monocytes) and only occasional mature neutrophils are found (< 1%, excluding blood contamination). Elevation of nucleated cells in the CSF is called pleocytosis.

What increases CSF production?

The increased CSF production is the result of an increased activity of Na+-K+ ATPase at the choroid plexus level, which establishes a sodium gradient across the choroid epithelial cells, as well as of an elevated CBF (66).

How do you get rid of CSF?

A lumbar puncture (spinal tap) is performed in your lower back, in the lumbar region. During a lumbar puncture, a needle is inserted between two lumbar bones (vertebrae) to remove a sample of cerebrospinal fluid. This is the fluid that surrounds your brain and spinal cord to protect them from injury.

What causes high lymphocytes in CSF?

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.

How do you read CSF 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 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.

What do they look for in CSF for MS?

Cerebral spinal fluid studies can confirm demyelinating disease of the nervous system. They show an increase in immunoglobulin concentrations in more than 90% of patients with MS. IgG index (a comparison between IgG levels in the CSF and in the serum) is elevated in many MS patients.

What does high WBC in CSF mean?

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

Why is protein increased in CSF in meningitis?

CSF protein Bacterial meningitis leads to a more permeable blood brain barrier (due to increased inflammation). Protein leaks into the subarachnoid space from the blood, resulting in markedly increased CSF protein levels.

What is the normal CSF pressure of adults?

Normal CSF contains 0-5 mononuclear cells. The CSF pressure, measured at lumbar puncture (LP), is 100-180 mm of H2O (8-15 mm Hg) with the patient lying on the side and 200-300 mm with the patient sitting up.

What does blood in CSF indicate?

Finding red blood cells in the CSF may be a sign of bleeding. However, red blood cells in the CSF may also be due to the spinal tap needle hitting a blood vessel. Additional conditions which this test may help diagnose include: Arteriovenous malformation (cerebral) Cerebral aneurysm.

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.