Chapter 7 of Radiography - Essentials
for Limited Practice 122 complete
Solutions best Rated.
Chapter 7 of Radiography - Essentials
for Limited Practice 122 complete
Solutions best Rated.
The unit used to indicate the total quantity of xrays in an exposure is: - ANSWER Milliampere- second
(mAs)
Which of the following will result in increased radiographic density:Increased mA,Increased exposure
time,Decreased source image receptor distance (SID) - ANSWER All
The mass density of the body part is referred to as: - ANSWER Tissue density
The primary controller of radiographic density is: - ANSWER mAs
The difference in radiographic density between any two adjacent portions of the image is called: -
ANSWER contrast
The primary factor controlling radiographic contrast and xray penetration is: - ANSWER kVp
High contrast produced by using low kVp results in an image with: - ANSWER A short scale of contrast
Generalized unwanted exposure on the image is called: - ANSWER fog
A decrease in SID will result in: - ANSWER Increased magnification
A misrepresentation in the size or shape of the structure being examined is called: - ANSWER distortion
, Chapter 7 of Radiography - Essentials
for Limited Practice 122 complete
Solutions best Rated.
The "fuzzy" unsharpness at the edges of structures or body parts is called: - ANSWER penumbra
The smaller effective focal spot, the ____ the penumbra, and the ___ the spatial resolution.
(greater/less, less/less, less/greater, greater/greater) - ANSWER Less, greater
When a large OID is used, spatial resolution can be improved by: 1. Decreasing the SID 2. Increasing the
SID 3. Maintaining the small focal spot - ANSWER 2 & 3
Fog affects radiographic quality by causing: - ANSWER Decreased contrast
Motion of the patient, either voluntary or involuntary, during the exposure will result in decreased: -
ANSWER Spatial resolution
A term used to describe a grainy or mottled image is: - ANSWER Quantum mottle
One means of controlling distortion is by controlling the: - ANSWER Part position
The factors that affect the quantity of xray in the xray beam are: a. mAs, b. kVp, c. Anatomically
programmed radiography (APR) - ANSWER a. &b.
Which of the following will affect the quality of the xray beam? mAs, kVp, Anatomically programmed
radiography (APR), Automatic exposure control (AEC) - ANSWER kVp
If the mAs is doubled, the dose to patient will: - ANSWER double
According to the inverse square law, if the SID is doubled (e.g., 40 inches to 80 inches), the intensity or
quantity of xrays will: - ANSWER Decrease to one fourth of the original intensity
for Limited Practice 122 complete
Solutions best Rated.
Chapter 7 of Radiography - Essentials
for Limited Practice 122 complete
Solutions best Rated.
The unit used to indicate the total quantity of xrays in an exposure is: - ANSWER Milliampere- second
(mAs)
Which of the following will result in increased radiographic density:Increased mA,Increased exposure
time,Decreased source image receptor distance (SID) - ANSWER All
The mass density of the body part is referred to as: - ANSWER Tissue density
The primary controller of radiographic density is: - ANSWER mAs
The difference in radiographic density between any two adjacent portions of the image is called: -
ANSWER contrast
The primary factor controlling radiographic contrast and xray penetration is: - ANSWER kVp
High contrast produced by using low kVp results in an image with: - ANSWER A short scale of contrast
Generalized unwanted exposure on the image is called: - ANSWER fog
A decrease in SID will result in: - ANSWER Increased magnification
A misrepresentation in the size or shape of the structure being examined is called: - ANSWER distortion
, Chapter 7 of Radiography - Essentials
for Limited Practice 122 complete
Solutions best Rated.
The "fuzzy" unsharpness at the edges of structures or body parts is called: - ANSWER penumbra
The smaller effective focal spot, the ____ the penumbra, and the ___ the spatial resolution.
(greater/less, less/less, less/greater, greater/greater) - ANSWER Less, greater
When a large OID is used, spatial resolution can be improved by: 1. Decreasing the SID 2. Increasing the
SID 3. Maintaining the small focal spot - ANSWER 2 & 3
Fog affects radiographic quality by causing: - ANSWER Decreased contrast
Motion of the patient, either voluntary or involuntary, during the exposure will result in decreased: -
ANSWER Spatial resolution
A term used to describe a grainy or mottled image is: - ANSWER Quantum mottle
One means of controlling distortion is by controlling the: - ANSWER Part position
The factors that affect the quantity of xray in the xray beam are: a. mAs, b. kVp, c. Anatomically
programmed radiography (APR) - ANSWER a. &b.
Which of the following will affect the quality of the xray beam? mAs, kVp, Anatomically programmed
radiography (APR), Automatic exposure control (AEC) - ANSWER kVp
If the mAs is doubled, the dose to patient will: - ANSWER double
According to the inverse square law, if the SID is doubled (e.g., 40 inches to 80 inches), the intensity or
quantity of xrays will: - ANSWER Decrease to one fourth of the original intensity
