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. 2019 Dec 16;4:204. [Version 1] doi: 10.12688/wellcomeopenres.15497.1

Figure 1. Sample characteristics.

Figure 1.

General examples of sample appearance characteristics are demonstrated. A: normal clear CSF; B: markedly blood-stained CSF (from a patient with intraventricular blood) with C: the same sample after centrifugation, showing partial haemolysis; D: xanthochromic CSF is often observed in TBM and is attributed to albumin-bound bilirubin that crossed the blood-CSF barrier; E: mildly blood-stained CSF with F: clear CSF supernatant after centrifugation; G: normal appearing plasma; H: haemolysed plasma. CSF, cerebrospinal fluid; TBM, tuberculous meningitis.