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Procedures 3 > Mobile Radiography > Flashcards

Mobile Radiography Flashcards

(60 cards)

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1
Q

What type of equipment does Mobile radiography use?

A

Transportable X-ray

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2
Q

Mobile radiography is commonly performed in

A

Patient rooms
Emergency department
ICU
Surgery and recovery
Nursery and neonatal units

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3
Q

Where was Mobile X-ray first used?

A

Military

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4
Q

Mobile radiography equipment is

A

Battery operated

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5
Q

Compared to stationary units, mobile radiography is not as ______

A

Sophisticated

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6
Q

Mobile equipment vary in exposure controls and

A

Power sources

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7
Q

A typical mobile unit has controls for setting

A

kVp and mAs

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8
Q

mAs controls automatically adjust

A

mA and time

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9
Q

What does the mAs typically range at?

A

0.04 to 320

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10
Q

What does kVp typically range between?

A

40 to 130

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11
Q

What is APR

A

Anatomically programmed radiography

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12
Q

A system of preprogrammed exposure techniques settings that is organized by position and examination and set through the control panel of the radiography unit

A

APR (anatomically programmed radiography)

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13
Q

Capacitor portables are not

A

Battery powered

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14
Q

DR mobile units does what to workflow efficiency?

A

Increases

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15
Q

Mobile units with direct digital capability

A

DR mobile units

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16
Q

What type of detector does a DR mobile unit use?

A

Flat-panel

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17
Q

How does DR mobile units get the images to PACS?

A

Wirelessly transfers

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18
Q

Lower radiation doses possible with digital _____ software.

A

Post-processing

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19
Q

What are the three important technical factors that must be understood to perform optimal mobile examinations ?

A

Grid
Anode heel effect
SID

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20
Q

What type of chart is also essential to optimal mobile examinations?

A

Exposure technique

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21
Q

Where should the anode be?

A

At the head

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22
Q

Optimum performance requires grid to be

A

Level
Centered to CR
Used at recommended focal distance or radius

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23
Q

The use of a grid on an unstable surface may cause

A

“Off level” grid cutoff

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24
Q

The midline of the grid more than __ to __ inches off transversely from the CR causes “off level” grid cutoff

A

1 to 1 1/2

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25
When using a grid, exposures outside of the recommended focal range may produce cutoff on the
Lateral margin
26
The Anode heel effect causes decreased image density under the _____ side of the x-ray tube
Anode
27
_____ SID and _____ field sizes are common in mobile
Short Large
28
SID should be maintained at
40’
29
Standardized distance ensures
Consistent images
30
If a longer SID (over 40) is used, an increase in ___ is required
mAs
31
Using a longer SID increases the risk of
Motion artifact
32
When should a technique chart be available?
For every machine
33
A _____ should always be available for accurate patient measurement
Caliper
34
Does Mobile radiography produce high or low occupational dose?
High
35
What is the recommended minimal distance you should stand from the mobile unit?
6ft (2m)
36
Where should you stand in comparison to the beam?
At a right angle (90 degrees)
37
The lowest amount of scatter radiation occurs at a
Right angle from the primary beam
38
What is the most effective radiation protection measure?
Distance
39
What is the minimal source to skin distance?
12 in (30cm)
40
Two types of patients in isolation
Those who have contagious infectious microorganisms Those who must be protected from exposure to infectious microorganisms (reverse isolation)
41
Where should the base of the mobile machine be placed for a supine position?
Middle of bed
42
Where should the base of the mobile machine be placed for a seated upright position?
Foot of the bed
43
Where should the base of the mobile machine be placed for a lateral and decubitus position?
Parallel or perpendicular to the bed
44
Patient considerations when performing mobile examinations are
Assessment of patient condition Patient mobility Fractures Interfering devices Positioning of asepsis
45
Assessment of patient condition allows necessary adaptation of procedure to ensure
Quality patient care and imaging outcome
46
The radiographer assesses
Alertness Respiration ability to cooperate Limitations to procedure
47
Can the IR damage skin?
Yes
48
What can be used on the IR to protect the patients skin?
Cloth or IR cover
49
What examinations are/can be performed with mobile radiography?
Chest - AP Abdomen Pelvis Femur C-spine Neonate
50
For a portable AP chest, how should you position the patient?
Seated upright Semi upright Supine
51
The top of the IR should be _____ for an AP chest.
2in above relaxed shoulder
52
The CR for an AP chest should enter
Approximately 3 inches below jugular notch at level of T7
53
What structures should be shown on an AP chest?
Heart Trachea Diaphragmatic domes Entire lung field Vascular markings
54
For fluid levels, which side should be down?
Affected
55
For air levels, which side should be down?
Unaffected
56
How long should the patient lie in the lateral recumbent position before the exam for air/fluid levels
5 min
57
Where should the CR enter for an AP abdomen?
Level of iliac crest or 10th rib laterally
58
Where should the CR enter on a lateral decubitus abdomen?
2in above iliac crest
59
For an AP pelvis the legs should be rotated
15 degrees medially if possible
60
For a lateral C-spine, the CR should enter
Level of C4

Procedures 3 (4 decks)

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