A client has been admitted for observation after a closed head injury. there is clear fluid leaking from the client's nose. how would the nurse assess if this drainage is csf

Answer: Is grossly bloody appearance and has a pH of 6 Rationale: Leakage of CSF from the ears or nose may accompany basilar skull fracture. it can be distinguish from other body fluids because the drainage will separate into bloody and yellow concentric rings on dressing material which is also known as halo sign