Image Acquisition: RTBC Assessments
Exam 3 Questions and Answers Already
Passed
What is the primary function of an image receptor in radiographic imaging?
A) To reduce exposure
B) To capture and convert x-rays into an image
C) To increase radiation exposure
D) To filter the x-ray beam
✔✔B) To capture and convert x-rays into an image
What does the term “density” refer to in radiographic imaging?
A) The degree of brightness on the image
B) The amount of radiation absorbed by the patient
C) The degree of blackness on a radiograph
D) The type of tissue being imaged
✔✔C) The degree of blackness on a radiograph
How does increasing kVp (kilovolt peak) affect image contrast?
1
,A) Increases image contrast
B) Decreases image contrast
C) Has no effect on image contrast
D) Only affects image brightness
✔✔B) Decreases image contrast
What role does mAs (milliampere-seconds) play in image quality?
A) Controls the exposure time only
B) Controls the quantity of x-rays produced
C) Affects the sharpness of the image
D) Reduces the amount of scatter radiation
✔✔B) Controls the quantity of x-rays produced
What is the relationship between focal spot size and image sharpness?
A) Larger focal spots produce sharper images
B) Smaller focal spots produce sharper images
C) Focal spot size has no effect on image sharpness
D) Larger focal spots improve contrast
2
,✔✔B) Smaller focal spots produce sharper images
How does patient positioning affect image acquisition?
A) Only affects the brightness of the image
B) Ensures that the area of interest is properly aligned with the image receptor
C) Does not affect the image quality
D) Only affects the exposure time
✔✔B) Ensures that the area of interest is properly aligned with the image receptor
What is the purpose of beam collimation in radiographic imaging?
A) To increase scatter radiation
B) To focus the x-ray beam on the area of interest
C) To increase image contrast
D) To reduce the amount of radiation exposure to the patient
✔✔D) To reduce the amount of radiation exposure to the patient
How does the use of contrast media influence image acquisition?
A) It reduces the need for x-rays
3
, B) It improves visibility of specific structures by altering x-ray absorption
C) It decreases the contrast between tissues
D) It has no effect on image quality
✔✔B) It improves visibility of specific structures by altering x-ray absorption
What is the effect of increasing the distance between the x-ray tube and the image receptor?
A) Increases the intensity of the x-rays
B) Reduces the intensity of the x-rays
C) Has no effect on the image quality
D) Increases image sharpness
✔✔B) Reduces the intensity of the x-rays
What is the purpose of grid use in radiographic imaging?
A) To increase scatter radiation
B) To reduce scatter radiation and improve image contrast
C) To decrease image sharpness
D) To focus the x-ray beam
✔✔B) To reduce scatter radiation and improve image contrast
4
Exam 3 Questions and Answers Already
Passed
What is the primary function of an image receptor in radiographic imaging?
A) To reduce exposure
B) To capture and convert x-rays into an image
C) To increase radiation exposure
D) To filter the x-ray beam
✔✔B) To capture and convert x-rays into an image
What does the term “density” refer to in radiographic imaging?
A) The degree of brightness on the image
B) The amount of radiation absorbed by the patient
C) The degree of blackness on a radiograph
D) The type of tissue being imaged
✔✔C) The degree of blackness on a radiograph
How does increasing kVp (kilovolt peak) affect image contrast?
1
,A) Increases image contrast
B) Decreases image contrast
C) Has no effect on image contrast
D) Only affects image brightness
✔✔B) Decreases image contrast
What role does mAs (milliampere-seconds) play in image quality?
A) Controls the exposure time only
B) Controls the quantity of x-rays produced
C) Affects the sharpness of the image
D) Reduces the amount of scatter radiation
✔✔B) Controls the quantity of x-rays produced
What is the relationship between focal spot size and image sharpness?
A) Larger focal spots produce sharper images
B) Smaller focal spots produce sharper images
C) Focal spot size has no effect on image sharpness
D) Larger focal spots improve contrast
2
,✔✔B) Smaller focal spots produce sharper images
How does patient positioning affect image acquisition?
A) Only affects the brightness of the image
B) Ensures that the area of interest is properly aligned with the image receptor
C) Does not affect the image quality
D) Only affects the exposure time
✔✔B) Ensures that the area of interest is properly aligned with the image receptor
What is the purpose of beam collimation in radiographic imaging?
A) To increase scatter radiation
B) To focus the x-ray beam on the area of interest
C) To increase image contrast
D) To reduce the amount of radiation exposure to the patient
✔✔D) To reduce the amount of radiation exposure to the patient
How does the use of contrast media influence image acquisition?
A) It reduces the need for x-rays
3
, B) It improves visibility of specific structures by altering x-ray absorption
C) It decreases the contrast between tissues
D) It has no effect on image quality
✔✔B) It improves visibility of specific structures by altering x-ray absorption
What is the effect of increasing the distance between the x-ray tube and the image receptor?
A) Increases the intensity of the x-rays
B) Reduces the intensity of the x-rays
C) Has no effect on the image quality
D) Increases image sharpness
✔✔B) Reduces the intensity of the x-rays
What is the purpose of grid use in radiographic imaging?
A) To increase scatter radiation
B) To reduce scatter radiation and improve image contrast
C) To decrease image sharpness
D) To focus the x-ray beam
✔✔B) To reduce scatter radiation and improve image contrast
4
