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Correction of CSF WBC for Blood Contamination

Specialty:

Neurology, Psychiatry, Ophthalmology & Otolaryngology

Objective:

ICD-10:

Description:

Normally in blood, there are 700 RBCs for each WBC. By adjusting the white cell count seen in a bloody CSF for this factor, the number of WBCs in "excess" (and an approximate number of the WBC before the blood was introduced) can be given. This is used for traumatic taps or situations of subarachnoid hemorrhage. If the WBC and/or RBC are abnormal, then a more complex calculation is required.

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