Chapter 1 - Premilinary Steps In Radiography

Question 1

Degree of film blackening

Answer 1

Optical Density

Question 2

Primary factors controlling density are

Answer 2

mA
Exposure Time
mAs

Question 3

Difference in density between two areas on a radiograph

Answer 3

Contrast

• A low contrast image displays many density levels and a high contrast image displays fewer density levels.

Question 4

The primary controlling factor of radiographic contrast is

Answer 4

kVp

Question 5

Ability to visualize small structures

Answer 5

Recorded Detail

Question 6

Recorded detail is primarily controlled by the following

Answer 6

Geometry
Film
Screen
Distance
Focal Spot Size
Motion

Question 7

Primary controlling factor of Shape Distortion

Answer 7

Alignment
CR
Angulation
Anatomic Part
IR

Question 8

Misrepresentation of the size or shape of any anatomic structure

Answer 8

Distortion

Question 9

Is the process of killing only those microorganisms that are pathogenic

Answer 9

Disinfection

Question 10

Chemical substances that inhibit the growth of without necessarily killing pathogenic microorganisms are called

Answer 10

Antisepsis

Question 11

3 types of muscle tissue that affect motion

Answer 11

Smooth (Involuntary)
Cardiac (Involuntary)
Straited (Voluntary)

Question 12

Primary method of reducing involuntary motion is by

Answer 12

Reducing exposure time

Question 13

To prevent straining the back muscles when lifting a heavy patient, you should

Answer 13

Flex the knees, straigthen the back and bend from hips

Question 14

When moving a patient’s hip, what should you do

Answer 14

Flex the patient’s knees to raise themselves or if not, raising the body is easier when the knee is flex.

Question 15

How many person is preferable in transferring the patient to the radiographic table

Answer 15

At least four or preferably 6 persons

Question 16

Restrictions of collimation serves what two purposes

Answer 16

1. Reduce patient dose and reduces the amount of scatter radiation that reach the IR
2. Excellent recorded detail and improve radiographic contrast, producing shorter scale contrast

Question 17

Conditions that require a decrease in technical factors include the following

Answer 17

☑️ Old age
☑️ Emphysema
☑️ Pneumothorax
☑️ Emaciation
☑️ Degenerative Arthritis
☑️ Atrophy

Question 18

Conditions require an increase in technical factors includes

Answer 18

☑️ Pneumonia
☑️ Pleural Effussion
☑️ Hydrocephalus
☑️ Enlarged heart
☑️ Ascites
☑️ Edema

Question 19

Depresses the diaphragm and abdominal viscera
Lengthens and expand the lung fields
Elevates the sternum and pushes it anteriorly
Elevates the ribs and reduces their angle near spine

Answer 19

Inspiration (Inhalation)

Question 20

Elevates the diaphragm and abdominal viscera
Shortens the lung fields
Depresses the sternum and lowers the ribs and increases their angle near spine

Answer 20

Expiration (Exhalation)

Question 21

When exposure are to be made during shallow breathing, the patient should practice what

Answer 21

slow, even breathing so that only the structures above the one being examined move

Question 22

When lung motion and not rib motion is desired, the patient should practice what

Answer 22

slow, deep breathing after compression band has been applied across chest