Chapter 1 Exam

Question 1

What exposure factor controls density?

Answer 1

mA - Milliamperage

Question 2

What exposure factor controls contrast?

Answer 2

kVp - Kilovoltage peak

Question 3

What is the difference between long scale and short scale?

Answer 3

A long scale will be of low contrast, and a short scale will be of high contrast.

Question 4

What is OID?

Answer 4

Object to image receptor distance.

Question 5

What happens to your image if you increase OID?

Answer 5

If you increase the OID, the image is worse because it will have increased magnification and distortion.

Question 6

Position

Answer 6

Position is the patience relevancy to the image receptor.

Question 7

Projection

Answer 7

Projection is the path of the x-ray beam.

Question 8

Explain what an LPO is.

Answer 8

Left posterior oblique is next to the image receptor.

Question 9

What is the difference between arthrology and osteology?

Answer 9

Arthrology is the study of joints.

Osteology is the study of bones.

Question 10

What is a fowler position?

Answer 10

A recumbent position with the body tilted with the head higher than the feet.

Question 11

Describe the Trendelenburg position?

Answer 11

A recumbent position with the body tilted with the head lower than the feet.

Question 12

Describe the lithotomy position.

Answer 12

Recumbent position with knees and hip flexed and thighs, abducted and rotated, externally, supported by ankle supports.

Question 13

Describe the Sims position.

Answer 13

A recumbent oblique position with a patient lying on the left anterior side with the right knee and thigh flexed, and left arm extended down behind the back.

Question 14

What is an oblique position?

Answer 14

This position is not perpendicular to the image receptor, and instead is at a 45° angle.

Question 15

Erect

Answer 15

A body position that is upright either standing or sitting.

Question 16

Recumbent

Answer 16

A body position that is lying down. Can be supine, prone or lateral.

Question 17

What is a cephalad angle?

Answer 17

Shooting the central Ray towards the head.

Question 18

What is a caudaud angle?

Answer 18

Shooting center ray towards the feet.

Question 19

What are the three cardinal rules?

Answer 19

Time - exposure
Distance - from the x-ray beam
Communication

Question 20

List the synovial joints

Answer 20

Plane/gliding glass
Ginglymus/hinge
Trochoid/Pivot
Ellipsoid/condyloid
Seller/Saddle
Spheroidal/Ball + Socket

Question 21

Collimation

Answer 21

Restriction of the x-ray beam

Question 22

CR

Answer 22

Center Ray - the center most portion of the x-ray beam admitted from the x-ray tube

Question 23

IR

Answer 23

Image receptor - the device that responds to the ionizing radiation to create the radiographic image after it exits the patient

Question 24

DR

Answer 24

Digital radiography

Question 25

Markers

Answer 25

Anatomic markers to indicate right or left anatomy

Question 26

Shielding

Answer 26

Using lead to shield individual from radiation

Question 27

Sagittal Plane

Answer 27

Divides the body into left and right parts.

Question 28

Coronal

Answer 28

Divides the body into anterior and posterior parts

Question 29

Oblique

Answer 29

45° angle. Can be on longitudal or sagittal plane.

Question 30

What are the three structural classifications of joints?

Answer 30

Fibrous, Cartilaginous, Synovial

Question 31

What happens to your image when you decrease the OID?

Answer 31

If you decrease the OID, the image will be better because there will be less magnification and distortion.