Questions and CORRECT Answers
Consider a technologist that accidentally uses a higher kVp setting than needed for a radiograph
of the chest. Which of the following is used to display the image as if it was exposed using
proper technical factors?
A. Histogram analysis
B. Edge Enhancement
C. Quantinzation
D. Rescaling - CORRECT ANSWER - D. Rescaling
Which of the following glands is located within the sella turcica?
A. Hippocampus
B. Hypothalamus
C. Pineal
D. Pituary - CORRECT ANSWER - D. Pituitary
Federal law on radiation protection requires which two of the following?
A. Dosimeters for all employees exposed to radiation
B. Maintaining personnel dose records
C. Publication of personnel dose records
D. Signage for radiation areas - CORRECT ANSWER - B. Maintaining personnel dose
records
D. Signage for radiation areas
, Which of the following is true when a multi-focuse image intensifier tube is operated in
magnification mode:
A. A larger area of input phosphor is used
B. Greater voltage is applied to the electrostatic lenses
C. Patient dose will be lower
D. Spatial resolution will be reduced - CORRECT ANSWER - B. Greater voltage is
applied to the electrostatic lenses
What type of consent occurs during a standard outpatient two-view chest x-ray examination?
A. Implied
B. Informed
C. Legal
D. Written - CORRECT ANSWER - A. Implied
Which of the following long-term radiation effects re most likely in diagnostic medical imaging?
A. Acute radiation syndrome
B. Cancer
C. Cataracts
D. Hair loss - CORRECT ANSWER - B. Cancer
Which two of these processes corrects for slight underexposure or overexposure errors caused by
incorrect technical factors settings? ( select two):
A. Histogram analysis
B. Look-up table ( LUT) adjustments
C. Quantization