The bed ladder is attached to a turntable, a ____-degree rotatable platform that is attached to the framework of the apparatus.

When applying pressure to a seated recipient's back, the practitioner's joints should be:

A) Stacked B) Abducted C) Hyperextended D) At a 180-degree angle

Dysplasias and carcinomas account for approximately what percentage of clinical idiopathic erythroplakias seen in oral mucous membranes?

a. 10% b. 25% c. 50% d. 75% e. 90%