Xanthochromia in CSF is most closely associated with elevated levels of which substance?

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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

Xanthochromia in CSF is most closely associated with elevated levels of which substance?

Explanation:
Xanthochromia occurs when red blood cells in the CSF break down over time, producing bilirubin, a pigment that gives the fluid a yellow color. Bilirubin comes from the breakdown of heme in hemoglobin, which is a protein, so the presence of xanthochromia is most closely tied to elevated protein and its breakdown products in the CSF. Other substances listed do not produce this pigment-related discoloration.

Xanthochromia occurs when red blood cells in the CSF break down over time, producing bilirubin, a pigment that gives the fluid a yellow color. Bilirubin comes from the breakdown of heme in hemoglobin, which is a protein, so the presence of xanthochromia is most closely tied to elevated protein and its breakdown products in the CSF. Other substances listed do not produce this pigment-related discoloration.

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