RTBC - fundamentals of fluoroscopy
UPDATED Exam Questions and
CORRECT Answers
What is the best method to ensure the correct procedure is performed on the appropriate patient?
- CORRECT ANSWER - Verify two patient identifiers
What steps must be taken if a procedure requires puncturing of the skin or administration of IV
contrast? - CORRECT ANSWER - The patient must sign and date a written consent form
What relationship exists between pulse settings in fluoroscopy and patient dose? - CORRECT
ANSWER - Direct relationship - increased pulse settings results in increased patient dose
In what scenario would intermittent fluoroscopy be beneficial? - CORRECT ANSWER -
During a cystogram to periodically check bladder fill progress
Reducing the OID will result in what? - CORRECT ANSWER - Decreased size distortion
This statement is accurate regarding magnification mode in fluoroscopy. - CORRECT
ANSWER - Magnification mode causes automatic brightness control (ABC) to increase
the milliamperage (mA) and the patient dose.
How does the 15% rule relate to barium contrast in fluoroscopy? - CORRECT 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? - CORRECT 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? - CORRECT 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. - CORRECT
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? - CORRECT
ANSWER - Patient
According to the inverse square law, how does increasing distance from the radiation source
affect radiation intensity? - CORRECT ANSWER - Intensity decreases by the square of
the distance from the source
Relative to the patient, which angle results in the least amount of scatter radiation during
stationary fluoroscopy? - CORRECT ANSWER - 90 degrees
In order to reduce scatter radiation, where should the x-ray source be placed when the operator
needs to be close to the patient during mobile fluoroscopy? - CORRECT ANSWER -
Underneath the patient
What type of shielding is vital when the operator must turn their back for a procedure? -
CORRECT ANSWER - Wrap around lead apron
The role of the Bucky slot cover in a stationary fluoroscopy system is to: - CORRECT
ANSWER - Protect the reproductive organs of the healthcare worker
What is the regulated lead equivalency thickness for lead glasses? - CORRECT
ANSWER - 0.35 mm
UPDATED Exam Questions and
CORRECT Answers
What is the best method to ensure the correct procedure is performed on the appropriate patient?
- CORRECT ANSWER - Verify two patient identifiers
What steps must be taken if a procedure requires puncturing of the skin or administration of IV
contrast? - CORRECT ANSWER - The patient must sign and date a written consent form
What relationship exists between pulse settings in fluoroscopy and patient dose? - CORRECT
ANSWER - Direct relationship - increased pulse settings results in increased patient dose
In what scenario would intermittent fluoroscopy be beneficial? - CORRECT ANSWER -
During a cystogram to periodically check bladder fill progress
Reducing the OID will result in what? - CORRECT ANSWER - Decreased size distortion
This statement is accurate regarding magnification mode in fluoroscopy. - CORRECT
ANSWER - Magnification mode causes automatic brightness control (ABC) to increase
the milliamperage (mA) and the patient dose.
How does the 15% rule relate to barium contrast in fluoroscopy? - CORRECT 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? - CORRECT 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? - CORRECT 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. - CORRECT
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? - CORRECT
ANSWER - Patient
According to the inverse square law, how does increasing distance from the radiation source
affect radiation intensity? - CORRECT ANSWER - Intensity decreases by the square of
the distance from the source
Relative to the patient, which angle results in the least amount of scatter radiation during
stationary fluoroscopy? - CORRECT ANSWER - 90 degrees
In order to reduce scatter radiation, where should the x-ray source be placed when the operator
needs to be close to the patient during mobile fluoroscopy? - CORRECT ANSWER -
Underneath the patient
What type of shielding is vital when the operator must turn their back for a procedure? -
CORRECT ANSWER - Wrap around lead apron
The role of the Bucky slot cover in a stationary fluoroscopy system is to: - CORRECT
ANSWER - Protect the reproductive organs of the healthcare worker
What is the regulated lead equivalency thickness for lead glasses? - CORRECT
ANSWER - 0.35 mm
