USMLE Lab Values CSF

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This flashcard provides the normal CSF cell count range (0–5 cells/mm³ or 0–5×10⁶/L), essential for evaluating central nervous system infections or inflammation. Elevated counts may suggest conditions like meningitis or encephalitis.

Cell count, CSF

0-5/cubic mm, 0-5*10E6/L

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Key Terms

Term
Definition

Cell count, CSF

0-5/cubic mm, 0-5*10E6/L

Chloride, CSF

118-132 mEq/L, mM

Proteins, total, CSF

Gamma globulin

Less than 40 mg/dL, 0.4 g/L

3-12%

Glucose, CSF

40-70 mg/dL, 2.2-3.9 mM

Pressure, CSF

70-180 mmH2O

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TermDefinition

Cell count, CSF

0-5/cubic mm, 0-5*10E6/L

Chloride, CSF

118-132 mEq/L, mM

Proteins, total, CSF

Gamma globulin

Less than 40 mg/dL, 0.4 g/L

3-12%

Glucose, CSF

40-70 mg/dL, 2.2-3.9 mM

Pressure, CSF

70-180 mmH2O