RTBC- Advanced Exposure Factors|
Exam Questions with Complete
Answers
According toy the inverse square law, if the source-to-image distance, (SID) increases,
the receptor exposure will:
Decrease
According to the inverse square law, if the source-to-image distance (SID)
decreases, the patient dose will:
Increase
What position in the following x-ray beam illustration represents the area of
the highest intensity?
Position A
According to the inverse square law, if the source-to-image distance (SID)
increases, the beam intensity will:
Decrease
Increasing the distance from the X-ray source results in which of the following?
Decreased beam intensity
An X-ray exposure at 40inches (102cm) results in a beam intensity of 200 micro
gray (ugy). What is the new intensity for an X-ray exposure at 50th ches (127cm)?
128 ugy
, If the patient dose is 1 milligray (mGy) at a 40-inch (102cm) source-to-image distance
(SID), what is the patient dose at a 72-inch (183cm) SID using the same technical
factors?
0.3 mGy
If an optimal radiograph is acquired at 72inches (183cm) with air kerma of 4 milligray
(mGy), what will the air kerma be if the distance is reduced to 40 inches (102cm)?
13
In x-ray exposure at 50 inches, (127 cm) results in a beam intensity of 200 micro
gray (ugy). What is the new intensity for an x-ray exposure at 40 inches (102 cm)?
312 ugy
If the patient dose is 1 milligray (mGy) at a 72 inch (183 cm) source-to-image distance
(SID), what is the patient does at a 40 inch (102 cm) SID using the same technical
factors?
3.24 mGy
An x-ray exposure measured at 60 inches, (152 cm) results in a beam intensity of
100 microgray (uGy). What is the new intensity for an x-ray exposure at 72 inches
(183 cm)?
69 uGy
If the patient dose is 0.5 mg at a 50 inches (127 cm) source-to-skin distance (SSD) ,
what is the patient dose at a 64 inch (162 cm) SSD using the same technical factors?
0.31 mGy
Exam Questions with Complete
Answers
According toy the inverse square law, if the source-to-image distance, (SID) increases,
the receptor exposure will:
Decrease
According to the inverse square law, if the source-to-image distance (SID)
decreases, the patient dose will:
Increase
What position in the following x-ray beam illustration represents the area of
the highest intensity?
Position A
According to the inverse square law, if the source-to-image distance (SID)
increases, the beam intensity will:
Decrease
Increasing the distance from the X-ray source results in which of the following?
Decreased beam intensity
An X-ray exposure at 40inches (102cm) results in a beam intensity of 200 micro
gray (ugy). What is the new intensity for an X-ray exposure at 50th ches (127cm)?
128 ugy
, If the patient dose is 1 milligray (mGy) at a 40-inch (102cm) source-to-image distance
(SID), what is the patient dose at a 72-inch (183cm) SID using the same technical
factors?
0.3 mGy
If an optimal radiograph is acquired at 72inches (183cm) with air kerma of 4 milligray
(mGy), what will the air kerma be if the distance is reduced to 40 inches (102cm)?
13
In x-ray exposure at 50 inches, (127 cm) results in a beam intensity of 200 micro
gray (ugy). What is the new intensity for an x-ray exposure at 40 inches (102 cm)?
312 ugy
If the patient dose is 1 milligray (mGy) at a 72 inch (183 cm) source-to-image distance
(SID), what is the patient does at a 40 inch (102 cm) SID using the same technical
factors?
3.24 mGy
An x-ray exposure measured at 60 inches, (152 cm) results in a beam intensity of
100 microgray (uGy). What is the new intensity for an x-ray exposure at 72 inches
(183 cm)?
69 uGy
If the patient dose is 0.5 mg at a 50 inches (127 cm) source-to-skin distance (SSD) ,
what is the patient dose at a 64 inch (162 cm) SSD using the same technical factors?
0.31 mGy
