What is the normal CSF cell count?

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Study for the Clinical Laboratory Science Test: Urinalysis and Body Fluids. Prepare with interactive questions, detailed explanations, and insightful feedback. Ace your examination!

Multiple Choice

What is the normal CSF cell count?

Explanation:
Normal CSF cell count is 0–5 cells per microliter in healthy adults. The CSF normally has very few cells because the blood-brain barrier limits entry of immune cells into the central nervous system. When the count rises above this range, it suggests an abnormal process such as infection, inflammation, hemorrhage, or malignancy. That makes the 0–5 cells/µL range the best fit. The other ranges imply normal greater numbers or are clearly elevated beyond normal. (Note: neonatal ranges can be higher, but for adults the 0–5 cells/µL range is standard.)

Normal CSF cell count is 0–5 cells per microliter in healthy adults. The CSF normally has very few cells because the blood-brain barrier limits entry of immune cells into the central nervous system. When the count rises above this range, it suggests an abnormal process such as infection, inflammation, hemorrhage, or malignancy. That makes the 0–5 cells/µL range the best fit. The other ranges imply normal greater numbers or are clearly elevated beyond normal. (Note: neonatal ranges can be higher, but for adults the 0–5 cells/µL range is standard.)

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