RTBC - fundamentals of fluoroscopy
Exam Questions With All Correct Answers
What is the best method to ensure the correct procedure is performed on the
appropriate patient? - ANSWER✔✔-Verify two patient identifiers
What steps must be taken if a procedure requires puncturing of the skin or
administration of IV contrast? - ANSWER✔✔-The patient must sign and date a written
consent form
What relationship exists between pulse settings in fluoroscopy and patient dose? -
ANSWER✔✔-Direct relationship - increased pulse settings results in increased patient
dose
In what scenario would intermittent fluoroscopy be beneficial? - ANSWER✔✔-During a
cystogram to periodically check bladder fill progress
Reducing the OID will result in what? - ANSWER✔✔-Decreased size distortion
This statement is accurate regarding magnification mode in fluoroscopy. -
ANSWER✔✔-Magnification mode causes automatic brightness control (ABC) to
increase the milliamperage (mA) and the patient dose.
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 1
, How does the 15% rule relate to barium contrast in fluoroscopy? - ANSWER✔✔-An
increase in kVp by 15% doubles the exposure, so mAs should be halved.
When capturing a still image in pediatric fluoroscopy, what is the recommended
alternative to spot imaging? - ANSWER✔✔-Last image hold (LIH)
Prior to the administration of contrast media, it is important to verify if the patient has
any allergies to what? - ANSWER✔✔-Latex
Contrast media
Medications
Beam restriction is a method used to manage patient dose in fluoroscopy. Use the
following illustration to determine the type of beam restriction and the resulting patient
dose. - ANSWER✔✔-Scenario A demonstrates increased beam restriction
Scenario A will decrease the patient dose
What is the greatest source of scatter in a fluoroscopic procedure? - ANSWER✔✔-
Patient
According to the inverse square law, how does increasing distance from the radiation
source affect radiation intensity? - ANSWER✔✔-Intensity decreases by the square of the
distance from the source
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 2
Exam Questions With All Correct Answers
What is the best method to ensure the correct procedure is performed on the
appropriate patient? - ANSWER✔✔-Verify two patient identifiers
What steps must be taken if a procedure requires puncturing of the skin or
administration of IV contrast? - ANSWER✔✔-The patient must sign and date a written
consent form
What relationship exists between pulse settings in fluoroscopy and patient dose? -
ANSWER✔✔-Direct relationship - increased pulse settings results in increased patient
dose
In what scenario would intermittent fluoroscopy be beneficial? - ANSWER✔✔-During a
cystogram to periodically check bladder fill progress
Reducing the OID will result in what? - ANSWER✔✔-Decreased size distortion
This statement is accurate regarding magnification mode in fluoroscopy. -
ANSWER✔✔-Magnification mode causes automatic brightness control (ABC) to
increase the milliamperage (mA) and the patient dose.
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 1
, How does the 15% rule relate to barium contrast in fluoroscopy? - ANSWER✔✔-An
increase in kVp by 15% doubles the exposure, so mAs should be halved.
When capturing a still image in pediatric fluoroscopy, what is the recommended
alternative to spot imaging? - ANSWER✔✔-Last image hold (LIH)
Prior to the administration of contrast media, it is important to verify if the patient has
any allergies to what? - ANSWER✔✔-Latex
Contrast media
Medications
Beam restriction is a method used to manage patient dose in fluoroscopy. Use the
following illustration to determine the type of beam restriction and the resulting patient
dose. - ANSWER✔✔-Scenario A demonstrates increased beam restriction
Scenario A will decrease the patient dose
What is the greatest source of scatter in a fluoroscopic procedure? - ANSWER✔✔-
Patient
According to the inverse square law, how does increasing distance from the radiation
source affect radiation intensity? - ANSWER✔✔-Intensity decreases by the square of the
distance from the source
COPYRIGHT © 2025 BY OLIVIA GREENWAYS, ALL RIGHTS RESERVED 2
