Queckenstedt test is done for: (A) Glomus tumor, (B) CSF rhinorrhea, (C) Otosclerosis, (D) Acoustic neuroma
Answer is B. Drainage of CSF in some cases may often be elicited on endoscopy by having the patient perform a Valsalva maneuver or by compressing both jugular veins (Queckenstedt-Stookeytest) Ref : internet sources