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  2. List of reference ranges for cerebrospinal fluid - Wikipedia

    en.wikipedia.org/wiki/List_of_reference_ranges...

    Reference ranges for ions and metals in CSF [1]; Substance Lower limit Upper limit Unit Corresponds to % of that in plasma [clarification needed]; Osmolality: 280 [1]: 300 [1]: mmol/L ...

  3. Cerebrospinal fluid - Wikipedia

    en.wikipedia.org/wiki/Cerebrospinal_fluid

    Cerebrospinal fluid (CSF) is a clear, colorless body fluid found within the tissue that surrounds the brain and spinal cord of all vertebrates. CSF is produced by specialised ependymal cells in the choroid plexus of the ventricles of the brain, and absorbed in the arachnoid granulations. In humans, there is about 125 mL of CSF at any one time ...

  4. Lymphocytic pleocytosis - Wikipedia

    en.wikipedia.org/wiki/Lymphocytic_pleocytosis

    Under normal conditions, there are usually less than 5 white blood cells per μL of CSF. In a pleocytic setting, the number of lymphocytes can jump to more than 1,000 cells per μL. Increases in lymphocyte count are often accompanied by an increase in cerebrospinal protein concentrations in addition to pleocytosis of other types of white blood ...

  5. Oligoclonal band - Wikipedia

    en.wikipedia.org/wiki/Oligoclonal_band

    Oligoclonal bands are present in the CSF of more than 95% of patients with clinically definite multiple sclerosis. [ 1 ] Two methods of analysis are possible: (a) protein electrophoresis , a method of analyzing the composition of fluids, also known as "SDS-PAGE (sodium dodecyl sulphate polyacrylamide gel electrophoresis)/ Coomassie blue ...

  6. CSF glucose - Wikipedia

    en.wikipedia.org/wiki/CSF_glucose

    CSF glucose levels can be useful in distinguishing among causes of meningitis as more than 50% of patients with bacterial meningitis have decreased CSF glucose levels while patients with viral meningitis usually have normal CSF glucose levels. Decrease in glucose levels during a CNS infection is caused due to glycolysis by both white cells and ...

  7. Lumbar puncture - Wikipedia

    en.wikipedia.org/wiki/Lumbar_puncture

    It may also be used to detect the presence of malignant cells in the CSF, as in carcinomatous meningitis or medulloblastoma. CSF containing less than 10 red blood cells (RBCs)/mm 3 constitutes a "negative" tap in the context of a workup for subarachnoid hemorrhage, for example. Taps that are "positive" have an RBC count of 100/mm 3 or more. [9]

  8. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    All values in Hematology – red blood cells (except hemoglobin in plasma) All values in Hematology – white blood cells; Platelet count (Plt) A few values are for inside red blood cells only: Vitamin B 9 (folic acid/folate) in red blood cells; Mean corpuscular hemoglobin concentration (MCHC)

  9. Meningitis - Wikipedia

    en.wikipedia.org/wiki/Meningitis

    A ratio ≤0.4 is indicative of bacterial meningitis; [52] in the newborn, glucose levels in CSF are normally higher, and a ratio below 0.6 (60%) is therefore considered abnormal. [8] High levels of lactate in CSF indicate a higher likelihood of bacterial meningitis, as does a higher white blood cell count. [52]