OTHER CSF INFO

Question 1

Erythrophages can persist for _______ following a hemorrhage; they stain positive for _______ and may include ______ crystals

Answer 1

4 to 8 weeks
hemosiderin
hematoidin

Question 2

RBCs must usually remain in the CSF for approximately _____ before noticeable hemolysis begins

Answer 2

2 hours

Question 3

What is the purpose of adding Methylene blue on the diluting fluid for CSF count?

Answer 3

To differentiate PMNs and Mononuclear cell

Question 4

A Neutrophil found in CSF with pyknotic nuclei (identical with Nucleated RBCs) may indicate a ________

Answer 4

degenerating cell

Question 5

the two most routinely/commonly used techniques For measuring total CSF protein manual

Answer 5

Turbidimetry (SSA and TCA method) and Dye Binding method (uses Coomassie brilliant blue)

Question 6

Xantochromic or Hemolyzed CSF can lead to falsely ________ values

Answer 6

elevated CSF lactate

Question 7

Presence of oligoclonal band in CSF electrophoresis can be located at what region?

Answer 7

Gamma

Question 8

In CSF electrophoresis by either IFE (Immunofixation electrophoresis) or IEF (Isoelectric focusing), what staining technique is usually employed?

Answer 8

Silver staining