Radiography Recall 1

Question 1

radiographic density

Answer 1

the more dense the tissue, the lighter it appears on xray

Question 2

how do less dense tissues show up on xray?

Answer 2

darker

Question 3

why do we measure for xrays?

Answer 3

because the thickness of the tissues determines how much xray needs to go through to make an image

Question 4

how do you determine the risk of cancer from xray?

Answer 4

each exposure from each exam contributes to the lifetime radiation exposure of the patient

Question 5

define radiographic positioning

Answer 5

the placement of the body or body part between the xray tube and the film or image receptor

Question 6

CR

Answer 6

xray tube

Question 7

IR

Answer 7

image receptor/film

Question 8

What is the minimum amount of views you have to take?

Answer 8

2 opposing views

Question 9

the two opposing views should preferably be how many degrees to each other?

Answer 9

90 degrees

Question 10

define series in insurance terms

Answer 10

minimum amount of xrays for a complete exam

Question 11

projection definition

Answer 11

the path of the xray beam as it enters and exits the body

Question 12

view definition

Answer 12

the beam’s perspective

Question 13

position definition

Answer 13

the placement of the body or part

Question 14

describe lateral position for xray

Answer 14

coronal plane is perpendicular to the IR

Question 15

which side do you refer to when taking a lateral xray?

Answer 15

the side touching the IR

Question 16

describe oblique position for xray

Answer 16

body or part is rotated from normal anatomic position

Question 17

what do you refer to when you take an image of the trunk oblique?

Answer 17

the surfaces touching the IR

Question 18

what do you refer to when you take an image of the extremity oblique?

Answer 18

internal or external rotation from normal anatomic position

Question 19

what are the different body positions you can be in for xray while standing or seated?

Answer 19

PA or AP oblique (RAO, RPO, LAO, LPO) lateral (L or R)

Question 20

what are the different body positions you can be in for xray while prone or supine?

Answer 20

PA or AP oblique (RAO, RPO, LAO, LPO) lateral (L or R) decubitus

Question 21

axial view

Answer 21

there is more than a 10 degree tilt between the part and the CR (tube is usually tilted)

Question 22

tangential view

Answer 22

the CR is directed so it intersects an object at only one point on the surface (“Skimming” the body part)

Question 23

decubitus view

Answer 23

patient is recumbent, CR is horizontal, IR is vertical

Question 24

when are air fluid levels demonstrated?

Answer 24

on upright and decubitus views only

Question 25

what are the 3 basic rules for positioning?

Answer 25

1. the CR is centered to the middle of the part (and midfilm/IR) 2. the long axis of the part is parallel to the long axis of the IR 3. the CR is directed perpendicular to the part (and IR)

Question 26

What is this called? When do we use it?

Answer 26

1/2 apron

used any time we are not imaging the lumbars or pelvis

Question 27

Label where the arrows are pointed.

Answer 27

Center of body part

dotted line: CR

bucky

Question 28

Label the parts of the xray

Answer 28

Grey going clockwise: vertical and horizontal locks, collimater dials, collimator scales, filtration tracks, tube tilt indicator

Question 29

What are these? Which gender gets what?

Answer 29

girls: heart
boys: trapezoid

Question 30

What is this?

Answer 30

caliper

Question 31

What are these?

Answer 31

left: upright bucky
right: full spine bucky

Question 32

What is this?

Answer 32

table bucky

Question 33

Where does the cassette go?

Answer 33

on top of the table

Question 34

What is this?

Answer 34

image reader device for digital xrays

Question 35

What is this?

Answer 35

cassette or plate

Question 36

What is this?

Answer 36

digital “direct” radiography

Question 37

What is this?

Answer 37

lead vinyl sheets