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  2. List of reference ranges for cerebrospinal fluid - Wikipedia

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

    Reference ranges for other CSF constituents Substance Lower limit Upper limit Unit Corresponds to % of that in blood plasma; RBCs: n/a [2] 0 [2] / negative: cells/μL or cells/mm 3: WBCs: 0 [2] 3 [2] cells/μL cells/mm 3: pH: 7.28 [1] 7.32 [1] (-log M) PCO 2: 44 [1] 50 [1] mmHg 5.9 [7] 6.7 [7] kPa: PO 2: 40 [1] 44 [1] mmHg 5.3 [7] 5.9 [7] kPa

  3. Cerebrospinal fluid - Wikipedia

    en.wikipedia.org/wiki/Cerebrospinal_fluid

    [34] [36] The presence of red blood cells and xanthochromia may indicate subarachnoid hemorrhage; whereas central nervous system infections such as meningitis, may be indicated by elevated white blood cell levels. [36] A CSF culture may yield the microorganism that has caused the infection, [34] or PCR may be used to identify a viral cause. [36]

  4. Reference ranges for blood tests - Wikipedia

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

    Acid–base and blood gases are among the few blood constituents that exhibit substantial difference between arterial and venous values. [6] Still, pH, bicarbonate and base excess show a high level of inter-method reliability between arterial and venous tests, so arterial and venous values are roughly equivalent for these. [44]

  5. 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]

  6. Intracranial pressure - Wikipedia

    en.wikipedia.org/wiki/Intracranial_pressure

    For example, an increase in lesion volume (e.g., epidural hematoma) will be compensated by the downward displacement of CSF and venous blood. [24] Additionally, there is some evidence that brain tissue itself may provide an additional buffer for elevated ICP in circumstances of acute intracranial mass effect via cell volume regulation. [25] [26]

  7. 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 ...

  8. 11 Expert-Backed Tips For Stopping a Receding Hairline - AOL

    www.aol.com/11-expert-backed-tips-stopping...

    Right now, the most effective medication for reducing DHT levels is finasteride (also sold under the brand name Propecia). This prescription drug blocks 5-alpha reductase, reducing your DHT levels ...

  9. Glymphatic system - Wikipedia

    en.wikipedia.org/wiki/Glymphatic_system

    The majority of the CSF is formed in the choroid plexus and flows through the brain along a distinct pathway: moving through the cerebral ventricular system, into the subarachnoid space surrounding the brain, then draining into the systemic blood column via arachnoid granulations of the dural sinuses or to peripheral lymphatics along cranial ...