RTBC - PRIMARY EXPOSURE FACTORS EXAM QUESTIONS AND ANSWERS 100% CORRECTRTBC - PRIMARY EXPOSURE FACTORS EXAM QUESTIONS AND ANSWERS 100% CORRECTRTBC - PRIMARY EXPOSURE FACTORS EXAM QUESTIONS AND ANSWERS 100% CORRECT
mA in the x-ray tube is the unit of measure describing - ANSWER-Tube current
Whic...
ma in the x ray tube is the unit of measure descri
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RTBC - PRIMARY EXPOSURE
RTBC - PRIMARY EXPOSURE
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RTBC - PRIMARY EXPOSURE FACTORS
EXAM QUESTIONS AND ANSWERS
100% CORRECT
mA in the x-ray tube is the unit of measure describing - ANSWER-Tube current
Which of the following describes the x-ray tube current - ANSWER-Quantity of electron
flow
Which of the following statements describes the relationship between mA and beam
intensity - ANSWER-Beam intensity is directly proportional to the mA
How is the x-ray beam changed when mA is increased by a factor of 2 - ANSWER-
Beam quantity increases by a factor of two
Which of the following with double the quantity of photons in the x-ray beam? select two
- ANSWER-- double the exposure time, but do not change the mA
- double the mA but do not change the exposure time
Which of the following statements describes the relationship between mA and receptor
exposure - ANSWER-Receptor exposure is directly proportional to the mA
Which of the following statements describes the relationship between mA and patient
dose - ANSWER-Patient dose is directly proportional to the mA
Increasing mA result, in which of the following - ANSWER-Increased beam quantity
To reduce the patient those by half what must be done to the mA if all other factors are
held constant - ANSWER-Reduce mA by half
A radiograph acquired at a non-compliant. Patient demonstrates appropriate exposure,
but significant motion blur. If the original technique was 100mA and 0.5s, what new
technique will decrease motion, artifact, while maintaining the same total exposure? -
ANSWER-500mA and 0.1s
The default technique for the lateral projection of the thoracic spine is 400mA, 0.1s,
80kVp, and 40 SID. How should the technologist modify this technique to Blair the ribs,
and increase the visibility of the spine while maintaining the same receptor exposure? -
ANSWER-Decrease mA and increase exposure time
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