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ENT Nose and PNS 7d6b12d9

CSF rhinorrhoea is diagnosed by:

A
b2 macroglobulin
B
b2 transferrin
C
Thyroglobulin
D
Transthyretin
High-Yield Explanation
(b) b2 transferrin(Ref. Cummings, 6th ed., 807)b2 transferrin on electrophoresis is pathognomonic of CSF as this protein is present only in CSF.

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