Pronator drip is a sign of: (A) UMN lesion of upper limb, (B) LMN lesion, (C) Dorsal syringomyelia, (D) Carpel tunnel syndrome
Answer is A. In medicine, pronator drift refers to a pathologic sign seen during a neurological examination. Jean Alexandre Barre is credited with having first described it; thus it is sometimes known as the Barre test or sign. A positive result indicates spasticity seen in UMN lesion of upper limb Ref Harrison20th edition pg 2345