Diagnostic Imaging

Question 0

discovered x ray in 1895

Answer 0

wilhelm roentgen

Question 1

prior to 1970 this was the only imaging modality

Answer 1

x ray

Question 2

order of making x ray

Answer 2

source, patient, film

Question 3

x ray is a form of blank radiation

Answer 3

electromagnetic

Question 4

x rays cause blank of silver atoms on film

Answer 4

ionization

Question 5

positionings for radiographs

Answer 5

a-p, p-a, lateral, oblique

Question 6

a radiograph is read by using a blank and blank marker

Answer 6

illuminator, film

Question 7

the more blank an object, the less x rays blank the tissue and expose the film

Answer 7

dense, penetrate

Question 8

air/gas is blank on radiographs

Answer 8

radiolucent (black)

Question 9

soft itssue is blank on radio graphs

Answer 9

gray-black

Question 10

water is blank on radiographs

Answer 10

gray

Question 11

bone is blank on radiographs

Answer 11

radiopaque (white)

Question 12

metals are blank on x rays

Answer 12

bright white

Question 13

three things to evaluate bone for in x ray

Answer 13

density, fracture, tumor, infection, foreign body, anomaly

Question 14

three things to look for in x ray of joint

Answer 14

foreign body, arthritis, dislocation, fracture

Question 15

three things to look for in x ray of soft tissue

Answer 15

edema, hemorrhage, masses, calcifications, foreign bodies

Question 16

contrast radiographs use radioactive blank and may be blank or blank

Answer 16

injections, radiopaque, radiolucent

Question 17

use of a computer and x ray to image a cross sectional slice of the body

Answer 17

computed tomography

Question 18

each slice in ct scan is about blank

Answer 18

.3 to 1.5 cm

Question 19

three uses of ct scan

Answer 19

tumors, fractures, bone mineral analysis, diagnose pathology in other body systems

Question 20

this type of imaging does not involve ionizing radiation and utilizes radiofrequencies of tissues within a magnetic field

Answer 20

mri

Question 21

magnets of mri are measured in blank

Answer 21

tesla units

Question 22

1 tesla = blank times magnetic strength of earth

Answer 22

10,000

Question 23

mri magnet must be cooled to blank degrees kelvin because it is blank

Answer 23

4, superconducting

Question 24

magnetic field of mri causes certain alignment of atomic blank within the field

Answer 24

nuclei

Question 25

energy released from turning on and off blank during mri is called a blank and creates and image

Answer 25

radiowaves, signal

Question 26

t1 mri water appears blank and fats blank

Answer 26

dark, white

Question 27

t2 imaging has water showing as blank

Answer 27

water

Question 28

mri is great for evaluation of blank system and diagnosis of blank trauma and tumors

Answer 28

CNS, soft tissue

Question 29

metals or mechanical devices implanted in the body of a patient can disrupt blank in mri

Answer 29

magnetic field

Question 30

these are not an mri contraindication but does distort the image

Answer 30

orthopedic appliances

Question 31

patient is made radioactive and isotopes are attached to physiological molecules and obtains image of organ or tissue

Answer 31

nuclear scans

Question 32

high frequency sound waves create an image of living tissue and is harmless to pateitn, creates a real time move

Answer 32

ultrasound

Question 33

contrast injected into subarachnoid space mixes with csf to produce a column of radiopaque fluid that is typically utilized prior to surgery

Answer 33

myelogram