Upper Extremity

Question 1

A single hand consists of how many bones?

Answer 1

27

Question 2

How many phalanges are in 1 hand?

Answer 2

14

Question 3

The first metacarpal contains how many sesamoid bones?

Answer 3

2 on the palmar aspect

Question 4

What carpal bones are in the proximal row, named from the lateral side to medial side?

Answer 4

Scaphoid/Lunate/Triquetrum/ Pisiform

Question 5

What carpal bones are in the distal row, named from the lateral side to the medial side?

Answer 5

Trapezium/Trapezoid/Capitate/Hamate

Question 6

What does CMC stand for?

Answer 6

Carpometacarpal joint

Question 7

Which carpal bone has a saddle joint?

Answer 7

Trapezium

Question 8

Intercarpal articulations are what kind of joints?

Answer 8

Synovial gliding joints

Question 9

Fluid filled cyst with wall of fibrous tissue

Answer 9

Bone cyst

Question 10

Inflammation of bursa

Answer 10

Bursitis

Question 11

Displacement of bone from joint space

Answer 11

Dislocation

Question 12

Disruption in continuity of bone

Answer 12

Fracture

Question 13

Fractured at base of first metacarpal

Answer 13

Bennett fracture

Question 14

Fracture at metacarpal neck

Answer 14

Boxer fracture

Question 15

Fracture of distal radius with posterior displacement

Answer 15

Colles

Question 16

Fracture of distal radius with anterior displacement

Answer 16

Smith fracture

Question 17

What does DIP stand for?

Answer 17

Distal interphalangeal

Question 18

What does MCP stand for?

Answer 18

Metacarpalphalangeal

Question 19

What needs to be done for a fiberglass cast with your technique?

Answer 19

Increase mAs by 25% or 4 kVp

Question 20

Another name for the scaphoid bone

Answer 20

Navicular

Question 21

What is an ambulatory patient?

Answer 21

One who can walk on their own

Question 22

What is a non-ambulatory patient?

Answer 22

One who cannot walk on their own

Question 23

What is the collimation on a PA projection of the third digit?

Answer 23

1 inch on all sides, including 1 inch proximal to the MCP joint

Question 24

At what point does the CR enter the hand on a PA projection of the second digit?

Answer 24

Central Ray enters perpendicular to the PIP joint of the affected digit

Question 25

What is shown in a PA projection of the second digit?

Answer 25

Open interphalangeal (IP) and metacarpophalangeal (MCP) joint spaces
Entire digit from fingertip to distal portion of adjoining metacarpal
Little to no rotation and fingernail centered over distal phalanx, if seen in radiograph

Question 26

What artifacts must be removed prior to making an exposure of hand or digits?

Answer 26

Any rings, watches, or bracelets or anything else that will obstruct the radiograph