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

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Study for Success in Clinical Laboratory Science - Urinalysis and Body Fluids Test. Prepare with flashcards and multiple-choice questions, with hints and explanations. Get ready for your exam!

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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