LMRT STATE EXAM NEWEST WITH UPDATED QUESTIONS AND ANSWERS (ALREADY GRADED A+)
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Course
LMRT STATE
Institution
LMRT STATE
LMRT STATE EXAM NEWEST WITH
UPDATED QUESTIONS AND ANSWERS (ALREADY
GRADED A+)
Which type of x-ray photon interaction with the body is primarily responsible
for the radiation dose absorbed by the patient?
A.) Compton
B.) Photoelectric
C.) Coherent
D.) Characteristic - ANSWER-Photoel...
Which type of x-ray photon interaction with the body is primarily responsible
for the radiation dose absorbed by the patient?
A.) Compton
B.) Photoelectric
C.) Coherent
D.) Characteristic - ANSWER-Photoelectric
What is the NCRP recommendation for the lead equivalency of aprons
used for personnel protection?
A.) 0.05 mm
B.) 0.25mm
C.) 0.5 mm
D.) 1.0mm - ANSWER-0.5mm
What is erythema, as it relates to radiation exposure?
A.) Loss of hair caused by a high radiation dose
B.) Loss of hair caused by a long-term low radiation dose
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C.) Reddening of the skin caused by high radiation dose
D.) Reddening of the skin caused by long-term low radiation dose -
ANSWER-Reddening of the skin caused by high radiation dose
What is the guiding philosophy of radiation protection?
A.) ALARMA- as long as radiographs are made accessible
B.) ALARA- as low as reasonably achievable
C.) ALAIS- as long as ionizations are small
D.) ALAP- as low as possible - ANSWER-ALARA- as low as reasonably
achievable
Which of the following statements reflects current scientific opinion
regarding the effects of diagnostic levels of ionizing radiation?
A.) It is carcinogenic after a certain number of examinations have been
preformed
B.) Spontaneous abortion will occur if the patient is pregnant
C.) Depression of the white blood cell count is followed by acute
gastrointestinal distress
D.) There is an increase risk of cancer, leukemia, birth defects and
cataracts. - ANSWER-There is an increase risk of cancer, leukemia, birth
defects and cataracts.
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Which of the following changes will decrease patient dose?
1. Using a faster speed class imaging system
2. Increasing the kVp using the 15% rule, while decreasing the mAs to
compensate
3. Increasing the grid ratio to a 16:1 ratio
A.) 1 and 2 only
B.) 1 and 3 only
C.) 2 and 3 only
D.) 1, 2, and 3 - ANSWER-1 and 2 only
When radiation exposure occurs during pregnancy, the greatest risk of birth
defects occur when the exposure:
1. Exceeds 5 rad to the uterus
2. Occurs within the first trimester of pregnancy
3. Occurs within the third trimester of pregnancy
A.) 1 and 2 only
B.) 1 and 3 only
C.) 2 and 3 only
D.) 1, 2, and 3 - ANSWER-1 and 2 only
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At what kVp levels do Compton interactions occur?
A.) They do not occur with with x-ray exposure
B.) They occur below the diagnostic radiology kVp range
C.) They occur above the diagnostic radiology kVp range
D.) They occur throughout the diagnostic radiology kvp range. - ANSWER-
They occur throughout the diagnostic radiology kvp range.
What is the principal source of scatter radiation in radiography?
A.) the tube housing
B.) The Patient
C.) The IR
D.) The Collimator - ANSWER-The patient
What are the four essential elements required for x-ray production?
A.) A target, a vacuum, an electron source, and a high potential difference
B.) A target, an electron source, an inert gas environment, and a high
potential difference
C.) An electron source, a magnetic field, a resistance-free path, and a
target.
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