Glowacki & Sommers (RCIS) Actual
Final Exam Questions With Reviewed
100% Correct Detailed Answers
Guaranteed Pass!!
1. The exposure calibration factor, Nx, for a calibration instrument, is
expressed in:
A. cGy/Coulomb
B. R/Coulomb
C. ergs/Coulomb
D. volt/Coulomb
E. eV/Coulomb - ANSWER B
2. A patient with a H & N cancer is being treated with 10 MV x-rays. A beam
spoiler is being used to increase the dose to the superficial nodes. Which of
the following statements concerning the effects of the beam spoiler is/are
correct?
A. surface dose decreases with decreasing spoiler-to surface distance
B. surface dose increases as the thickness of the spoiler is increased
from 1cm to 2cm
C. the point of maximum dose buildup moves closer to the surface with
increasing spoiler-to-surface distance
D. the beam spoiler becomes the principal source of heavy particle
contamination of the beam - ANSWER B
3. Which of the following statements concerning wedge fields is correct?
A. the wedge causes an isodose curve tilt towards the toe
, B. the wedge angle increases with increasing hinge angle
C. the wedge helps to soften the beam by reducing hot spots
D. the maximum dose for a single beam occurs at dmax on the central
axis - ANSWER A
4. The most important step in the implementation of an electronic medical
chart is:
A. configuration
B. data gathering
C. problem-solving
D. staff education - ANSWER D
5. When treating carcinoma of the bladder, the superior border of the
radiation field usually does NOT extend superior to S-1. This is to reduce
toxicity to the:
A. kidney
B. ureters
C. lumbar spine
D. pelvic crest
E. small bowel - ANSWER E
6. Figure 3 shown represents a single-field isodose distribution as the beam
traverses through:
A. bone
B. full thickness block
C. soft tissue only
D. partial transmission block
E. lung - ANSWER C
, 7. In the 3-field treatment of the pelvis (anterior and 2 posterior obliques) an
increase in the angle between the wedge fields would:
A. increase the dose to the rectum, but decrease the dose to the
femoral heads
B. decrease the dose to the rectum, and decrease the dose to the
femoral heads
C. increase the dose to the rectum, and increase the dose to the
femoral heads
D. decrease the dose to the rectum, but increase the dose to the
femoral heads
E. not affect the dose to the rectum, but would decrease the dose to
the femoral heads - ANSWER D
8. The wavelengths of ultrasound are:
A. greater than those of x-rays
B. less than those of x-rays
C. less than those of visible light
D. less than those of microwaves - ANSWER A
9. Bladder cancers are mostly of what histology?
A. squamous cell
B. adenocarcinoma
C. transitional cell
D. small cell - ANSWER C
10. A Farmer-type chamber used for exposure or air kerma measurements in a
hospital must have:
A. air equivalent wall
, B. water equivalent wall
C. tissue equivalent wall
D. high Z wall - ANSWER A
What is the most helpful tool in diagnosing prostate cancer?
A. PLA
B. PGA
C. PSB
D. PSA - ANSWER D
The initial dose rate at a point in tissue from a permanent seed implant with I-125
is 8 cGy/hr. The total dose at the same point will be _____ cGy.
A. 690
B. 7980
C. 11,500
D. 16,600
E. 18,000 - ANSWER D
Final Exam Questions With Reviewed
100% Correct Detailed Answers
Guaranteed Pass!!
1. The exposure calibration factor, Nx, for a calibration instrument, is
expressed in:
A. cGy/Coulomb
B. R/Coulomb
C. ergs/Coulomb
D. volt/Coulomb
E. eV/Coulomb - ANSWER B
2. A patient with a H & N cancer is being treated with 10 MV x-rays. A beam
spoiler is being used to increase the dose to the superficial nodes. Which of
the following statements concerning the effects of the beam spoiler is/are
correct?
A. surface dose decreases with decreasing spoiler-to surface distance
B. surface dose increases as the thickness of the spoiler is increased
from 1cm to 2cm
C. the point of maximum dose buildup moves closer to the surface with
increasing spoiler-to-surface distance
D. the beam spoiler becomes the principal source of heavy particle
contamination of the beam - ANSWER B
3. Which of the following statements concerning wedge fields is correct?
A. the wedge causes an isodose curve tilt towards the toe
, B. the wedge angle increases with increasing hinge angle
C. the wedge helps to soften the beam by reducing hot spots
D. the maximum dose for a single beam occurs at dmax on the central
axis - ANSWER A
4. The most important step in the implementation of an electronic medical
chart is:
A. configuration
B. data gathering
C. problem-solving
D. staff education - ANSWER D
5. When treating carcinoma of the bladder, the superior border of the
radiation field usually does NOT extend superior to S-1. This is to reduce
toxicity to the:
A. kidney
B. ureters
C. lumbar spine
D. pelvic crest
E. small bowel - ANSWER E
6. Figure 3 shown represents a single-field isodose distribution as the beam
traverses through:
A. bone
B. full thickness block
C. soft tissue only
D. partial transmission block
E. lung - ANSWER C
, 7. In the 3-field treatment of the pelvis (anterior and 2 posterior obliques) an
increase in the angle between the wedge fields would:
A. increase the dose to the rectum, but decrease the dose to the
femoral heads
B. decrease the dose to the rectum, and decrease the dose to the
femoral heads
C. increase the dose to the rectum, and increase the dose to the
femoral heads
D. decrease the dose to the rectum, but increase the dose to the
femoral heads
E. not affect the dose to the rectum, but would decrease the dose to
the femoral heads - ANSWER D
8. The wavelengths of ultrasound are:
A. greater than those of x-rays
B. less than those of x-rays
C. less than those of visible light
D. less than those of microwaves - ANSWER A
9. Bladder cancers are mostly of what histology?
A. squamous cell
B. adenocarcinoma
C. transitional cell
D. small cell - ANSWER C
10. A Farmer-type chamber used for exposure or air kerma measurements in a
hospital must have:
A. air equivalent wall
, B. water equivalent wall
C. tissue equivalent wall
D. high Z wall - ANSWER A
What is the most helpful tool in diagnosing prostate cancer?
A. PLA
B. PGA
C. PSB
D. PSA - ANSWER D
The initial dose rate at a point in tissue from a permanent seed implant with I-125
is 8 cGy/hr. The total dose at the same point will be _____ cGy.
A. 690
B. 7980
C. 11,500
D. 16,600
E. 18,000 - ANSWER D
