LOUISIANA RADIOLOGIC TECHNOLOGIST EXAM PRACTICE QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALE 2027 Q&A|
INSTANT DOWNLOAD PDF.– QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM
UPDATE
Core Domains
Radiation Protection and Safety
Radiographic Physics and Equipment
Anatomy and Positioning
Patient Care and Assessment
Image Production and Evaluation
Professional Ethics and Legal Compliance
Louisiana State Licensure Requirements
Contrast Media and Pharmacology
Quality Assurance and Improvement
Introduction
The Louisiana Radiologic Technologist Exam assesses the knowledge, skills, and
professional judgment required for safe and competent entry-level practice. This
comprehensive examination evaluates foundational radiologic science principles,
radiation protection standards, patient care practices, and Louisiana-specific
regulatory requirements. Questions include both knowledge-based items and
scenario-based applications that reflect real-world clinical decision-making.
Candidates must demonstrate critical thinking, ethical reasoning, and practical
problem-solving across all domains of radiologic technology practice.
SECTION ONE: QUESTIONS 1–50
,1. A candidate seeking initial Louisiana licensure as a radiologic technologist is
reviewing the statutory educational requirements. Which combination most
accurately reflects the minimum educational qualifications under Louisiana law?
A. Completion of an approved four-year university degree and a master's degree
in radiologic science
B. Completion of an approved secondary education or equivalent and successful
completion of a board-approved radiologic technology course of study
C. Completion of a two-year nursing program and six months of radiology clinical
experience
D. Completion of an employer-based radiography course without any formal
secondary education
🟢 Correct Answer: B. Completion of an approved secondary education or
equivalent and successful completion of a board-approved radiologic technology
course of study
🔴 Rationale:
Louisiana law requires applicants to have completed an approved secondary-
school course or an approved equivalency and to have successfully completed an
approved course of study in radiography, radiation therapy technology, fusion
technology, or nuclear medicine technology .
2. Under Louisiana regulations governing licensure by examination, which
national examination is specifically recognized for radiologic technologist
licensure?
A. National Council Licensure Examination for Registered Nurses (NCLEX-RN)
B. American Registry of Radiologic Technologists (ARRT) examination
C. United States Medical Licensing Examination (USMLE)
D. National Board Dental Examination (NBDE)
,🟢 Correct Answer: B. American Registry of Radiologic Technologists (ARRT)
examination
🔴 Rationale:
Louisiana's licensure-by-examination provisions recognize the written
examinations of the ARRT, Nuclear Medicine Technology Certification Board, or
American Society of Clinical Pathology, depending on the applicable discipline .
3. A radiographer selects 80 kVp and 400 mA for an exposure of 0.05 seconds.
What is the resulting mAs?
A. 8 mAs
B. 12 mAs
C. 20 mAs
D. 40 mAs
🟢 Correct Answer: C. 20 mAs
🔴 Rationale:
mAs is calculated by multiplying tube current in milliamperes by exposure time in
seconds; therefore, 400 mA × 0.05 seconds equals 20 mAs .
4. A radiographer wants to maintain receptor exposure while increasing the
source-to-image distance from 40 inches to 72 inches. If the original exposure is
10 mAs, approximately what new mAs should be selected according to the
inverse-square relationship?
A. 16.2 mAs
B. 20.0 mAs
, C. 24.5 mAs
D. 32.4 mAs
🟢 Correct Answer: D. 32.4 mAs
🔴 Rationale:
The exposure relationship is proportional to the square of the distance, so the
required mAs is 10 × (72²/40²), which is approximately 32.4 mAs .
5. Which interaction between an incoming x-ray photon and an outer-shell
electron results in absorption of the photon and ejection of an electron from the
atom?
A. Compton scattering
B. Coherent scattering
C. Photoelectric absorption
D. Pair production
🟢 Correct Answer: C. Photoelectric absorption
🔴 Rationale:
Photoelectric absorption occurs when the incident photon transfers essentially all
of its energy to a tightly bound electron, ejecting that electron and contributing
strongly to subject contrast .
6. Which interaction is the principal source of occupational scatter radiation
encountered by radiologic technologists during many diagnostic examinations?
A. Photoelectric absorption in the patient
B. Compton scattering in the patient
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALE 2027 Q&A|
INSTANT DOWNLOAD PDF.– QUESTIONS AND ANSWERS | VERIFIED AND WELL
DETAILED ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM
UPDATE
Core Domains
Radiation Protection and Safety
Radiographic Physics and Equipment
Anatomy and Positioning
Patient Care and Assessment
Image Production and Evaluation
Professional Ethics and Legal Compliance
Louisiana State Licensure Requirements
Contrast Media and Pharmacology
Quality Assurance and Improvement
Introduction
The Louisiana Radiologic Technologist Exam assesses the knowledge, skills, and
professional judgment required for safe and competent entry-level practice. This
comprehensive examination evaluates foundational radiologic science principles,
radiation protection standards, patient care practices, and Louisiana-specific
regulatory requirements. Questions include both knowledge-based items and
scenario-based applications that reflect real-world clinical decision-making.
Candidates must demonstrate critical thinking, ethical reasoning, and practical
problem-solving across all domains of radiologic technology practice.
SECTION ONE: QUESTIONS 1–50
,1. A candidate seeking initial Louisiana licensure as a radiologic technologist is
reviewing the statutory educational requirements. Which combination most
accurately reflects the minimum educational qualifications under Louisiana law?
A. Completion of an approved four-year university degree and a master's degree
in radiologic science
B. Completion of an approved secondary education or equivalent and successful
completion of a board-approved radiologic technology course of study
C. Completion of a two-year nursing program and six months of radiology clinical
experience
D. Completion of an employer-based radiography course without any formal
secondary education
🟢 Correct Answer: B. Completion of an approved secondary education or
equivalent and successful completion of a board-approved radiologic technology
course of study
🔴 Rationale:
Louisiana law requires applicants to have completed an approved secondary-
school course or an approved equivalency and to have successfully completed an
approved course of study in radiography, radiation therapy technology, fusion
technology, or nuclear medicine technology .
2. Under Louisiana regulations governing licensure by examination, which
national examination is specifically recognized for radiologic technologist
licensure?
A. National Council Licensure Examination for Registered Nurses (NCLEX-RN)
B. American Registry of Radiologic Technologists (ARRT) examination
C. United States Medical Licensing Examination (USMLE)
D. National Board Dental Examination (NBDE)
,🟢 Correct Answer: B. American Registry of Radiologic Technologists (ARRT)
examination
🔴 Rationale:
Louisiana's licensure-by-examination provisions recognize the written
examinations of the ARRT, Nuclear Medicine Technology Certification Board, or
American Society of Clinical Pathology, depending on the applicable discipline .
3. A radiographer selects 80 kVp and 400 mA for an exposure of 0.05 seconds.
What is the resulting mAs?
A. 8 mAs
B. 12 mAs
C. 20 mAs
D. 40 mAs
🟢 Correct Answer: C. 20 mAs
🔴 Rationale:
mAs is calculated by multiplying tube current in milliamperes by exposure time in
seconds; therefore, 400 mA × 0.05 seconds equals 20 mAs .
4. A radiographer wants to maintain receptor exposure while increasing the
source-to-image distance from 40 inches to 72 inches. If the original exposure is
10 mAs, approximately what new mAs should be selected according to the
inverse-square relationship?
A. 16.2 mAs
B. 20.0 mAs
, C. 24.5 mAs
D. 32.4 mAs
🟢 Correct Answer: D. 32.4 mAs
🔴 Rationale:
The exposure relationship is proportional to the square of the distance, so the
required mAs is 10 × (72²/40²), which is approximately 32.4 mAs .
5. Which interaction between an incoming x-ray photon and an outer-shell
electron results in absorption of the photon and ejection of an electron from the
atom?
A. Compton scattering
B. Coherent scattering
C. Photoelectric absorption
D. Pair production
🟢 Correct Answer: C. Photoelectric absorption
🔴 Rationale:
Photoelectric absorption occurs when the incident photon transfers essentially all
of its energy to a tightly bound electron, ejecting that electron and contributing
strongly to subject contrast .
6. Which interaction is the principal source of occupational scatter radiation
encountered by radiologic technologists during many diagnostic examinations?
A. Photoelectric absorption in the patient
B. Compton scattering in the patient
