Nerve involved in Saturday night palsy is:

 # Nerve involved in Saturday night palsy is:

A. Radial

B. Median

C. Auxiliary

D. Facial

The correct answer is A. Radial. 

THE TERM Saturday night palsy has become synonymous with radial nerve compression in the arm resulting from direct pressure against a firm object. It typically follows deep sleep on the arm, often after alcohol intoxication. The commonly accepted origin of the phrase is the association of Saturday night with drinking alcohol heavily.