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RAD 115 > Bontrager Ch 1C Basic Imaging Principles > Flashcards

Bontrager Ch 1C Basic Imaging Principles Flashcards

1
Q

The goal of Radiologic Technologists is to take images which can be measured against _______ for every projection.

A

criteria

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2
Q

images which are “diagnostic” but not high quality may…..

A
  1. give miss information
  2. Show careless work
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3
Q

What are the 6 radiographic criteria to evaluate an image? (B.A.S.I.C.S)

A
  1. Beam
  2. Artifacts
  3. Shielding
  4. Indicators
  5. Collimation
  6. Structures
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4
Q

Why is it important to use right/left markers on every radiographic image?

A

indicates the correct side of the patient or the correct limb.

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5
Q

Why is it unacceptable to mark images with a computerized, add-on marker (annotated marker) after the exposure is taken, rather than use a Leaded R or L which is exposed on the image?

A

may cause legal issues

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6
Q

TRUE OR FALSE:
There are additional types of markers other the R or L with the technologist’s initals.

A

TRUE

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7
Q

what is the difference between “routine” projections for a radiographic exam and “special” exams?

A

Routine: commonly assumed projections to be taken (pt is cooperative)
Special: need to be ordered specifically (pt is very ill)

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8
Q

why is a minimum of 2 projections, 90 degrees from each other, a general principle for x-ray exams?

A
  1. demonstrate superimposed anatomic structures
  2. localization of lesions or foreign bodies
  3. determination of alignment of fractures
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9
Q

TRUE of FALSE:
Two projections are generally performed for long bone exams.

A

TRUE

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10
Q

Name three exceptions to the rule where one projection is adequate for the minimum of two projections rule?

A
  1. AP Supine Abdomen (KUB)
  2. Pelvis
  3. AP Portable Chest
    (these typically only need 1 projection)
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11
Q

why are a minimum of three projections needed for joints?

A
  1. more info is needed for joints
  2. multiple surfaces and angles of bones making up the joints
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12
Q

name a reason only 2 projections might be taken of an area where 3 projections is routine.

A

post reduction images of fractured limbs

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13
Q

what is the definition of palpation?

A

light, gentle pressure with fingers directly on the patient to locate positioning landmarks.

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14
Q

certain bony landmarks are used for palpation in radiology because these landmarks respond to ……

A

spinal levels or organs

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15
Q

The long axis of the anatomic part is aligned to the long axis of the _____.

A

IR

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16
Q

TRUE or FALSE:
Body habitus plays a part in the decision-making process od the orientation of the IR.

A

TRUE

17
Q

Radiographs of the fingers, hands, wrists, forearms, and feet are displayed with ________ up.

A

digits

18
Q

TRUE or FALSE:
The right maker should always correlate to the right side of the body and the left marker should correlate to the left (of the patient).

A

TRUE

19
Q

TRUE or FALSE:
For a lateral projection, the side that is closest to the x-ray tube is marked.

A

FALSE

20
Q

TRUE or FALSE:
For limb projections use the appropriate right or left marker, generally on the lateral side of the anatomy of interest.

A

TRUE

21
Q

TRUE or FALSE:
For decubitus positions od the chest and abdomen the R or L marker should always be placed on the side up (the opposite side laid upon).

A

TRUE

22
Q

what landmark does the spinal level T2-T3 correspond to?

A

Jugular Notch

23
Q

what landmark does the spinal level T4-T5 correspond to?

A

Sternal Angle

24
Q

what landmark does the spinal level T9-T10 correspond to?

A

Xiphoid Process

25
Q

what landmark does the spinal level L2-L3 correspond to?

A

Lower lateral Rib margin

26
Q

what landmark does the spinal level L4-L5 correspond to?

A

Iliac Crest

27
Q

what landmark does the spinal level S1-S2 correspond to?

A

Anterior Superior Iliac Spine (ASIS)

28
Q

Minimum of 3 projections when ______ are in area or interest. more information is _______then what can be provided with 2 projections.

A
  1. Joints
  2. needed
29
Q

What are some examples of areas of interest where 3 projections are needed?

A

fingers, toes, hand, wrist, elbow, ankle, foot, and knee.

30
Q

what are some examples of areas of interest where a minimum of 2 projections is necessary?

A

forearm, humerus, femur, hips, tibia-fibula, and chest.

31
Q

sthenic or hyposthenic patients need what kind of orientation of the IR?

A

Portrait (14x17)

32
Q

hypersthenic patients need what kind of orientation of the IR?

A

Landscape (17x14)

RAD 115 (9 decks)

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