The Pop Quiz below contains 3 questions from the following body region of the OCS exam. Failure to correctly answer questions may suggest an area that needs further review.
Quiz: Wrist and Hand
When answering the questions, always select the "Best" answer.
- Question 1 of 3
1. A 46 year old female suffered a laceration injury to her left radial nerve, and has just began to perceive pain and temperature sensation on the dorsal side of her lateral 3 digits. Based on sensory receptor characteristics, which of the following sensations would you expect her to recover last?
- Correct!
- Incorrect: Based on fiber size and receptor characteristics, the clinical order of return of sensory perception is as follows (1) pain measured via pin prick, (2) 30 cps vibration, (3) moving touch and moving 2PD, (4) constant touch and static 2PD, and (5) 256 cps vibration.
- Question 2 of 3
2. The base of the first metacarpal articulates with which of the following?
- Correct!
- Incorrect: The base of the first metacarpal has a saddle-like surface that mirrors the trapezium with which it articulates.
- Question 3 of 3
3. While trying to catch a football a wide receiver leaps and lands awkwardly on his right wrist. He experiences immediate pain, is taken to the locker room for radiographs, and the team physician believes he may have suffered a Smith fracture. Which of the following radiographic findings would confirm the team physician’s suspicions?
- Correct!
- Incorrect: A Smith fracture displays a distal radius volar displacement radiographically. A Barton fracture is a displaced, unstable articular fracture-subluxation of the distal radius with displacement of the carpus along with the distal fracture segment (may be dorsal or volar).