(Self-test) Part DChapter 1 of Bontrager Textbook of Radiolographic Positioning
Which one of the following is not one of the four primary image quality factors? -
(correct Answer) - C. Kilovoltage(kv)
The amount of blackness on a processed radiograph is called: - (correct Answer) -
A. Density
Which of the following exposure factors primarily controls radiographic density? -
(correct Answer) - B. mAS
True/False For an underexposed radiograph, the mAs must be increased by a factor of
four to produce a visible change in radiographic density - (correct Answer) - False
Situation: A radiograph of the knee reveals that it is overexposed and must be
repeated. The orginal technique used 10 mAs. Which one of the following changes
will improve the image during the repeat exposure? - (correct Answer) - B. Decrease
to 5 mAs
The primary controlling factor for radiographic contrast is: - (correct Answer) -
B. kV
Situation: Chest radiography requires long-scale contrast. Which set of exposure
factors will produce this? - (correct Answer) - C. 110 kV, 2 mAs
Which one of the following sets of exposure factors will produce the highest
(short-scale) radiographic contrast? - (correct Answer) - A. 60 kV, 3o mAs
True/False: Kilovoltage is a secondary controlling factor for radiographic density.
- (correct Answer) - True
True/False: A low-kilovoltage technique (50 kV) produces a long scale-contrast
image. - (correct Answer) - False
Situation: A radiograph of the elbow reveals that it is overexposed. The
technologist wants to adjust kV rather than mAs for the repeat exposure. This is
contrary to common practice. The original analog exposure factors were 70 kV and 5
mAs. Which one of the following kV settings would reduce radiographic density by
one-half? - (correct Answer) - C. 60 kV and 5 mAs
Which one of the following techniques or devices will reduce the amount of scatter
radiation striking the IR? - (correct Answer) - D. All of the above
True/False: Recorded detail or spatial resolution is optimal with a long object
receptor distance (OID) and a short SID. - (correct Answer) - False
Which one of the following factors best controls involuntary cardiac motion
artifact? - (correct Answer) - D. Shortening the exposure time
Situation: The technologist is asked to produce a high-quality image of the carpal
(wrist) bones. The emergency room physician suspects that the patient has a very
small fracture of one of the bones. Which one of the following sets of technical
factors will produce an image with the highest degree of radiographic resolution? -
(correct Answer) - D. 0.3 mm focal spot and 40 inch SID
Rather that rely on the anode heel effect, what can be used to equalize density of
specific anatomy? - (correct Answer) - B. compensating filter
Which type of compensating filter is recommended for an AP projection of the
shoulder? - (correct Answer) - B. Boomerang
Which type of compensation filter is recommended for an axiolateral hip projection?
- (correct Answer) - A. Wedge
Which type of grid cutoff is created if the CR and the face of the grid are not
perpendicular to each other? - (correct Answer) - A. Off-level
Which one of the following projections require the use of a grid? - (correct
Answer) - C. AP abdomen
The misrepresentation of an object's size or shape projected on a radiograph is
called? - (correct Answer) - D. Distortion
Which one of the following sets of factors minimizes radiographic distortion to the
greatest degree? - (correct Answer) - C. 72 inch SID and 3 inch OID
True/False To best use the anode heel effect, the thinner aspect of the anatomic
Which one of the following is not one of the four primary image quality factors? -
(correct Answer) - C. Kilovoltage(kv)
The amount of blackness on a processed radiograph is called: - (correct Answer) -
A. Density
Which of the following exposure factors primarily controls radiographic density? -
(correct Answer) - B. mAS
True/False For an underexposed radiograph, the mAs must be increased by a factor of
four to produce a visible change in radiographic density - (correct Answer) - False
Situation: A radiograph of the knee reveals that it is overexposed and must be
repeated. The orginal technique used 10 mAs. Which one of the following changes
will improve the image during the repeat exposure? - (correct Answer) - B. Decrease
to 5 mAs
The primary controlling factor for radiographic contrast is: - (correct Answer) -
B. kV
Situation: Chest radiography requires long-scale contrast. Which set of exposure
factors will produce this? - (correct Answer) - C. 110 kV, 2 mAs
Which one of the following sets of exposure factors will produce the highest
(short-scale) radiographic contrast? - (correct Answer) - A. 60 kV, 3o mAs
True/False: Kilovoltage is a secondary controlling factor for radiographic density.
- (correct Answer) - True
True/False: A low-kilovoltage technique (50 kV) produces a long scale-contrast
image. - (correct Answer) - False
Situation: A radiograph of the elbow reveals that it is overexposed. The
technologist wants to adjust kV rather than mAs for the repeat exposure. This is
contrary to common practice. The original analog exposure factors were 70 kV and 5
mAs. Which one of the following kV settings would reduce radiographic density by
one-half? - (correct Answer) - C. 60 kV and 5 mAs
Which one of the following techniques or devices will reduce the amount of scatter
radiation striking the IR? - (correct Answer) - D. All of the above
True/False: Recorded detail or spatial resolution is optimal with a long object
receptor distance (OID) and a short SID. - (correct Answer) - False
Which one of the following factors best controls involuntary cardiac motion
artifact? - (correct Answer) - D. Shortening the exposure time
Situation: The technologist is asked to produce a high-quality image of the carpal
(wrist) bones. The emergency room physician suspects that the patient has a very
small fracture of one of the bones. Which one of the following sets of technical
factors will produce an image with the highest degree of radiographic resolution? -
(correct Answer) - D. 0.3 mm focal spot and 40 inch SID
Rather that rely on the anode heel effect, what can be used to equalize density of
specific anatomy? - (correct Answer) - B. compensating filter
Which type of compensating filter is recommended for an AP projection of the
shoulder? - (correct Answer) - B. Boomerang
Which type of compensation filter is recommended for an axiolateral hip projection?
- (correct Answer) - A. Wedge
Which type of grid cutoff is created if the CR and the face of the grid are not
perpendicular to each other? - (correct Answer) - A. Off-level
Which one of the following projections require the use of a grid? - (correct
Answer) - C. AP abdomen
The misrepresentation of an object's size or shape projected on a radiograph is
called? - (correct Answer) - D. Distortion
Which one of the following sets of factors minimizes radiographic distortion to the
greatest degree? - (correct Answer) - C. 72 inch SID and 3 inch OID
True/False To best use the anode heel effect, the thinner aspect of the anatomic
