Radiology Prep Review Week 4 Quiz

Front 1

Cells that are least sensitive to radiation exposure include:

Back 1

Nerve and muscle cells

Front 2

Which of the following is used as part of an effort to observe the ALARA concept?

Back 2

Collimation

Front 3

The most effective protection against radiation exposure for the radiographer is:

Back 3

Distance

Front 4

The most radiosensitive cells in the body are

Back 4

Lymphocytes

Front 5

Inherent filtration should be adjusted by the radiographer:

Back 5

Never

Front 6

The timer used in fluoroscopy:

Back 6

Is used to alert the fluoroscopist after 5 minutes of fluoroscopy has elapsed

Front 7

The process of cell division for germ cells is called:

Back 7

Meiosis

Front 8

Most of the damage to a cell occurs as a result of:

Back 8

Indirect effect

Front 9

Minimum source-to-skin distance for mobile radiography must be:

Back 9

12 inches

Front 10

Which of the following is used to limit the area of the patient being irradiated?

Back 10

Collimator

Front 11

Cells are more radiosensitive when:

Back 11

Fully oxygenated

Front 12

Gonadal shields may reduce exposure to female gonads by up to:

Back 12

50%

Front 13

Cosmic radiation:

Back 13

Is greater at higher altitudes because of a thinner atmospheric shield

Front 14

The greatest source of natural background radiation exposure is:

Back 14

Radon gas

Front 15

If the dose of scatter radiation in fluoroscopy to the radiographer is 10 mR at a distance of 2 feet from the table, where should the radiographer stand to reduce the dose to 2.5 mR?

Back 15

4 feet from the table

Front 16

The radiation dose that would cause the same genetic injury to the population as the sum of doses received by individuals actually being exposed is called:

Back 16

GSD Genetically Significant Dose

Front 17

Which of the following statements is true concerning the holding of patients for radiographic examinations?

Back 17

Should be done only when absolutely necessary, and then the holding should be done by a nonpregnant member of the patient's family

Front 18

The phases of the cellular life cycle, in order, are:

Back 18

Interphase (G1, S, G2), prophase, metaphase, anaphase, telophase

Front 19

The greatest source of human-produced radiation exposure is:

Back 19

Medical x-ray and gamma ray imaging procedures

Front 20

Blood count can be depressed with a whole body dose of

Back 20

25 rem

Front 21

Lead aprons used in fluoroscopy must be at least:

Back 21

0.5-mm lead equivalent

Front 22

Which of the following poisons the cell with H2O2?

Back 22

Indirect effect

Front 23

Positive beam limitation is also known as:

Back 23

Automatic collimation

Front 24

Compared with younger and older women, ova in women of reproductive age are:

Back 24

Less radiosensitive

Front 25

Which of the following is not part of background radiation?

Back 25

Microwave ovens

Front 26

What plane passes transversely across the body?

Back 26

Transverse plane

Front 27

What plane divides the body into superior and inferior portions?

Back 27

Transverse plane

Front 28

Which of the following are true regarding contrast arthrography? (This question has multiple answers)

Back 28

Asepsis required
May be performed on knee, shoulder, TMJ, hip, wrist
Indications include trauma, capsular damage, meniscal tears, rupture of ligaments, arthritis
Joint is manipulated by hand to distribute contrast medium

Front 29

What type of joint is the hip?

Back 29

Ball-and-socket joint

Front 30

What body type has the stomach and gall bladder low, vertical, and near the midline?

Back 30

Asthenic habitus

Front 31

What plane passes vertically through the midline of the body from front to back?

Back 31

Median sagittal plane

Front 32

What body type has the thorax broad and deep?

Back 32

Hypersthenic habitus

Front 33

For the lateral decubitus positions of the colon:

Back 33

The patient is lying on one side, the cassette is centered to the iliac crest, and the central ray is horizontal to the midline at the level of the iliac crest

Front 34

What type of joint has opposing surfaces that are convex-concave, allowing great freedom of motion?

Back 34

Saddle joint

Front 35

What body type has the stomach and gall bladder high and horizontal?

Back 35

Hypersthenic habitus

Front 36

What body type has the thorax narrow and shallow?

Back 36

Asthenic habitus

Front 37

Which of the following conditions would not be an indication for performing hysterosalpingography?

Back 37

Status of pregnancy

Front 38

What describes any plane parallel to the MSP?

Back 38

Sagittal plane

Front 39

What plane passes vertically through the midaxillary region of the body and through the coronal suture of the cranium at right angles to the midsagittal plane?

Back 39

Midcoronal plane

Front 40

What type of joint permits motion in one plane only?

Back 40

Hinge joint

Front 41

What is the most common body habitus, present in about 50% of the population?

Back 41

Sthenic habitus

Front 42

For the LPO or RPO positions for the colon:

Back 42

The patient is supine, rotated 35 to 45 degrees from the AP, with the central ray at the level of the iliac crest

Front 43

What body type is a massive build?

Back 43

Hypersthenic habitus

Front 44

What body type is a slender build?

Back 44

Hyposthenic habitus

Front 45

For the PA projection of the stomach:

Back 45

Center midway between the xiphoid process and the umbilicus and halfway between the midline and lateral border of the abdominal cavity

Front 46

What type of joint permits rotary movement in which a ring rotates around a central axis?

Back 46

Pivot joint

Front 47

What type of joint has a rounded head of one bone that moves in a cuplike cavity?

Back 47

Ball-and-socket joint

Front 48

What body type is of average build, present in about 35% of the population?

Back 48

Hyposthenic habitus

Front 49

Beam restriction has the following effect on contrast:

Back 49

Increases contrast because of reduction in the number of Compton's interactions that occur

Front 50

Low kVp produces which of the following? (This question has multiple answers)

Back 50

High contrast
Few gray tones
Short-scale contrast

Front 51

A radiograph with few gray tones, primarily exhibiting black and white, would be described as having what type of contrast? (This question has multiple answers)

Back 51

Short scale
High contrast

Front 52

High kVp produces which of the following? (This question has multiple answers)

Back 52

Long-scale contrast
Low contrast
Many gray tones

Front 53

More uniform penetration of anatomic structures occurs when what level of kVp is used?

Back 53

High

Front 54

The use of radiographic grids has the following effect on contrast:

Back 54

Increases contrast by absorbing scatter radiation

Front 55

The primary controlling factor of contrast is:

Back 55

kVp

Front 56

Contrast may be defined as:

Back 56

The radiographic quality that makes detail visible

Front 57

The adjustment in technical factors required when using beam restriction is:

Back 57

Increase mAs to compensate for the number of rays removed from the primary beam