Midterm Flashcards

(56 cards)

1
Q

what causes clear specks on a xray

A

dirty screen

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2
Q

What causes a black film on the border

A

light fogged film

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3
Q

what are the semilunar marks on an xray

A

fingernail marks or bent film

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4
Q

what is a christmas tree marks on an xray

A

static artifact

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5
Q

yellow or brown discoloration

A

exhausted fixer

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6
Q

T/F radiographs are legal property of the doctors office or hospital where they are made

A

true

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7
Q

T/F Based upon lecture and the article “The HIPAA Privacy Rule and Adolescents Legal Questions and Clinical Challenges”, a health history associated with pre- x-ray procedures, in a chiropractic practice; have protected status and are confidential
for all adolescents.

A

false

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8
Q

T/F Insurance groups have the right to review your patient’s radiographs and tie
reimbursement for the taking and / or interpretation to a standard of quality.

A

True

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9
Q

T/F the acanthion is facial landmark found on the mandible

A

false

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10
Q

T/F an AP lower cervical where the mentum superimposes over the third cerivical is most likely caused by spinal extension

A

false

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11
Q

T/F the first cervical radiograph view taken on “trauma” patient is the lateral

A

true

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12
Q

T/F cervical views benefit from suspension of respiration after deep inspiration

A

false

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13
Q

T/F Under the HIPAA privacy rule, adolescents who legally are adults and emancipated minors can exercise the rights of individuals and therefore they have the right to make health care decisions

A

true

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14
Q

T/F parents are considered to be the “personal rep” of their unemancipated minors and therefore have access to their childrens protected health information

A

true

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15
Q

T/F Doctors seeking to insulate themselves from potential “failure-to- diagnose” malpractice liability by sending X-rays to a chiropractic or medical radiologist will
find obtaining a second interpretation of X-rays is a guaranteed way to avoid liability

A

false

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16
Q

According to the article “What Wins Malpractice Cases”, what was the factor statistically associated with or the predictor of payment to patients?

A

the patient was awarded, despite cause or negligence, if they were permanently disabled

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17
Q

function of a filter is to

A

absorb xrays

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18
Q

what is the correct order from least radiopaque to most?

A

air, fat, water, bone, metal

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19
Q

what is minimally required for medicolegal identification

A

patients ID
Examination date
marker

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20
Q

ten day rule for females of child bearing age refers to performing non emergency abdominal-pelvic xray

A

during the 10 days after onset of menstration

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21
Q

an oblique view of the cervical spine shows all the IVF fully open but if a mandibular rami superimposes over the upper cervical vertebral. this indicates which type of “less than optimum” patient placement

A

patient’s head is not rotated 90*

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22
Q

To obtain an AP projection of the entire cervical spine, without superimposition of either the mandible or the occiput, one should

A

use the wagging jaw projection

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23
Q

For an AP or lateral view of the cervical spine, vertical (up or down) shift of a pair of identical anatomical structures indicate which type of “less-than- optimum” patient placement?

A

tilt lateral flexion

24
Q

There are two basic principles that guide the use of radiographic technology. Commonly two acronyms are used; ALARA and AHARP. Which of the following are correct as they relate to AHARP?

A

a guide for radiographiic quality

as high as reasonable possible

25
To best visualize the left intervertebral foramen in the cervical region, which of the following position should be done?
RPO with 15 in cephalic angle
26
A Davis Series refers to the following series of radiographs:
cervical
27
artifacts associated with inadequate processing?
Pi lines
28
what are required for proper film identification
patients name office name exam date office address
29
penetrating power of xray is
kilo-voltage
30
definition of radiographic contrast would be
tonal relationship between one density and another
31
the more angled the beam penetrating the object the more
elongated and magnified
32
distance between parts to be radiographed and the image receptors is commonly referred to as
object image distance
33
what exposure parameter will not increase the amount of denisty of a radiograph
increased focal film distance
34
doubling focal film distance required____ to compensate and maintain the film density
four times the mAs
35
principle of electrostatic law implies
electron will repel and electron
36
function of a screen is to
convert xrays to light
37
what type of radiation is the major consituent emitted from the target
Bremestrahulung
38
what is the most frequent cause to repeat radiographs
under exposure
39
highest mA will produce
highest contrast
40
14.In order to maintain density, miliaperage and exposure time are found to be ___ each other
inversely proportional to
41
A ____ kV change is the minimum necessary to produce noticeable (minor) change in penetration on a radiograph from the original used at 5.5 kV
5.0 kV
42
An increase in radiographic factors from the normally expected radiographic chart would be required when a patient has which of the following contraindications
emphysema
43
Original technique used: 45 mAs 70 kV 40” SID If the mA was set at 300, what time station would have been set?
3/20
44
Original technique used: 200 mA 4/5 sec 70 kV 40” SID If the mA was set at 300, what time station would have been set?
.4 sec
45
What corrections should be made for an AP projection of the pelvis if the greater trochanters are seen partially overlapping the femoral necks
invert LE 15*
46
An oblique view of the lumbar spine shows one pedicle placed over the posterior half of the vertebral body. The position was _____
over rotated
47
radiograph with many shades of density poses
too little density
48
with all factors unchanged if OID is reduced image mag will
directly decrease
49
what is most essential in producing a rad image
penetration
50
Which of the following interactions between x-ray photos and matter makes the most significant contribution to patient dose?
photoelectric effect
51
In which of the following radiographic examination is collimation to the film size, or less, of greatest important in a possibly pregnant female patient?
chest
52
what is seen in oblique film of cspine
IVF and pedices
53
T/F If the mAs is decreased by half increasing the Kv by 7 1/5% should approximately the same film density
false
54
T/F When using the protective copper and aluminum fiber on a female patient, the aluminum side is placed away the tube
true
55
T/F The quality of the x-ray photons with the x-ray beam is primarily controlled by the kilovoltage
true
56
T/F cathode side of xray tube is where xray photons are produced
false