Old Homework

Question 1

study of pt positioning performed for vis. of specific body parts on IR

Answer 1

rad positioning

Question 2

direction/path of CR as it passes thru pt, projecting an img onto the IR

Answer 2

projection

Question 3

describes the body part as seen by the IR; restricted to the discussion of an XR/img

Answer 3

view

Question 4

recumbent pos w head tilted higher than feet

Answer 4

Fowler’s

Question 5

recumbent obl pos w pt lying on L ant side, w knee & thigh flexed & L arm extended down behind the back

Answer 5

Sim’s

Question 6

recumbent supine pos w knees and hip flexed & thighs abducted & rotated externally, supported by ankle supports

Answer 6

Lithotomy

Question 7

bending of part outward/away from midline of body

Answer 7

valgus

Question 8

“knock-kneed” bending of a part inward/toward midline

Answer 8

varus

Question 9

higher the density, the _____ light is transmitted through the img

Answer 9

less

Question 10

controlling factors of what include: geometric factors (focal spot size, OID/SID), film speed, motion

Answer 10

spatial resolution

Question 11

what has these 4 primary controlling factors: SID, OID, object/IR alignment, & CR alignment/centering

Answer 11

distortion

Question 12

PACS?

Answer 12

picture archiving & comm system

Question 13

rules of what’s acceptable toward pt’s & other healthcare team members as well as personal actions/behaviors as defined w/in the profession

Answer 13

code of ethics

Question 14

ARRT

Answer 14

American Registry of Radiologic Technologists

Question 15

ASRT

Answer 15

American Society of Radiologic Technologists

Question 16

3 min projections when joints are an area of interest?

Answer 16

AP/PA, obl, lat

Question 17

when viewing an XR the pt is facing?

Answer 17

the viewer, w pt in anatomical pos. (pt’s L to viewer’s R)

Question 18

sci of body structure

Answer 18

anatomy

Question 19

sci of f(x) of living systems

Answer 19

physio

Question 20

10 body systems

Answer 20

skeletal, circulatory, digestive, respiratory, urinary, reproductive, nervous, muscular, endocrine, integumentary

Question 21

how many bones in axial skeleton?

Answer 21

80

Question 22

cranial bones

Answer 22

8 (2 parietal, 2 temporal, 1 frontal, 1 occipital, 1 ethmoid, 1 sphenoid)

Question 23

bones in vertebral column

Answer 23

26 (7 cervical, 12 thoracic, 5 lumbar, 1 sacrum, 1 coccyx)

Question 24

bones in chest

Answer 24

25 (1 sternum, 24 ribs)

Question 25

how many bones in appendicular skeleton?

Answer 25

126 bones

Question 26

how many carpals in ea hand?

Answer 26

8

Question 27

how many tarsals in ea foot?

Answer 27

7

Question 28

arthrology

Answer 28

study of joints

Question 29

unit of exposure that measures the amount of ionization created in the air is

Answer 29

Roentgen (R) or coulomb (C) per kg

Question 30

unit of rad dose?

Answer 30

gray or rad (pt dose)

Question 31

measure of equivalent dose

Answer 31

sievert or rem (occupational)

Question 32

measure of effective dose

Answer 32

sievert or rem; risk from a partial body exposure; allows comparisons of relative risks from various procedures

Question 33

7 ways to reduce pt exposure

Answer 33

min. repeats, correct filtration, accurate collimation (w/in 2%), specific area shielding, protect fetus, optimum IR speed (generally higher IR speed, AEC), select correct techniques

Question 34

pt dose is _______ during AEC when the kV is increase

Answer 34

decreased

Question 35

pb aprons should have a minimum of how much pb?

Answer 35

0.5 mm to reduce exposure by a factor of 50

Question 36

most commonly fractured carpal

Answer 36

scaphoid

Question 37

grids generally not required unless the anatomy measured greater than

Answer 37

10 cm

Question 38

elbow XR shows radius directly superimposed over ulna and coronoid process in profile. what projection was performed?

Answer 38

med. obl. elbow

Question 39

when performing a lat forearm/elbow, shoulder must be dropped to place entire upper limb on same _______ plane

Answer 39

horizontal

Question 40

a non visible post. fat pad on a well-exposed, correctly positioned lat elbow generally suggests?

Answer 40

neg study for injury

Question 41

which carpal articulates w radius?

Answer 41

scaphoid

Question 42

finger tips called

Answer 42

tuft

Question 43

hand has how many bones?

Answer 43

27 (14 phalanges, 5 metacarpals, 8 carpals)

Question 44

largest wrist bone?

Answer 44

capitate/os magnum

Question 45

sesamoid bones begins to develop btw ages?

Answer 45

8-12

Question 46

what controls detail

Answer 46

focal size

Question 47

what must you do during lat wrist for true lat

Answer 47

supinate thumb 5º

Question 48

fat pads on elbow indicate?

Answer 48

possible fracture

Question 49

(elbow) you see the radial head better in which pos?

Answer 49

ext obl

Question 50

(elbow) you see coronoid process better in which pos?

Answer 50

int obl