LATEST ARRT RADIOGRAPHY (R)
CERTIFICATION EXAM | Q&A WITH
RATIONALES
1. Which of the following is the correct patient
position for a posteroanterior (PA) chest radiograph?
A) Patient facing the image receptor, chin extended,
arms by sides
B) Patient facing the x-ray tube, back to image
receptor
C) Patient lying supine on the table
D) Patient in lateral recumbent position
Correct answer: A
Rationale: PA chest: patient faces the image receptor
(IR) with back to the tube; arms abducted away from
chest.
2. What is the recommended source-to-image
distance (SID) for a standard PA chest radiograph?
A) 40 inches (102 cm)
B) 72 inches (183 cm) – typically 72 inches for chest
to reduce magnification
C) 20 inches (51 cm)
,D) 100 inches (254 cm)
Correct answer: B
Rationale: Standard chest SID is 72 inches (183 cm)
to minimize magnification of the heart and improve
resolution.
3. Which of the following is the correct central ray
(CR) entry point for a PA chest radiograph?
A) T7 (mid-thoracic) – level of the inferior angle of the
scapula
B) C7 (cervical)
C) L4 (lumbar)
D) Xiphoid process
Correct answer: A
Rationale: CR enters at T7 (mid-thorax) for PA chest;
centered at level of inferior angle of scapula.
4. Which of the following structures is best visualized
on an anteroposterior (AP) supine abdomen
radiograph (KUB)?
A) Lungs
B) Kidneys, ureters, bladder (KUB) – calcifications,
bowel gas pattern
,C) Heart
D) Cervical spine
Correct answer: B
Rationale: KUB radiograph visualizes kidneys,
ureters, bladder, and bowel gas pattern.
5. Which of the following is the correct patient
position for an AP supine abdomen (KUB)?
A) Prone (face down)
B) Supine (face up), arms at sides or on chest
C) Lateral decubitus
D) Standing
Correct answer: B
Rationale: AP supine abdomen is performed with
patient supine, arms placed on chest to avoid
superimposition.
6. What is the recommended SID for an AP supine
abdomen radiograph?
A) 40 inches (102 cm)
B) 72 inches (183 cm)
C) 20 inches (51 cm)
, D) 100 inches (254 cm)
Correct answer: A
Rationale: Standard SID for abdomen is 40 inches
(102 cm); reduces magnification and maintains image
quality.
7. Which of the following is the correct central ray
(CR) entry point for an AP supine abdomen?
A) Xiphoid process
B) Level of iliac crests (L4) – approximately 2 inches
above iliac crest
C) Symphysis pubis
D) T12
Correct answer: B
Rationale: CR centered at level of iliac crests (L4-L5)
for KUB.
8. Which of the following is the correct patient
position for a lateral cervical spine radiograph?
A) AP position
B) Erect or supine lateral, shoulders relaxed, chin
extended slightly
C) Prone
CERTIFICATION EXAM | Q&A WITH
RATIONALES
1. Which of the following is the correct patient
position for a posteroanterior (PA) chest radiograph?
A) Patient facing the image receptor, chin extended,
arms by sides
B) Patient facing the x-ray tube, back to image
receptor
C) Patient lying supine on the table
D) Patient in lateral recumbent position
Correct answer: A
Rationale: PA chest: patient faces the image receptor
(IR) with back to the tube; arms abducted away from
chest.
2. What is the recommended source-to-image
distance (SID) for a standard PA chest radiograph?
A) 40 inches (102 cm)
B) 72 inches (183 cm) – typically 72 inches for chest
to reduce magnification
C) 20 inches (51 cm)
,D) 100 inches (254 cm)
Correct answer: B
Rationale: Standard chest SID is 72 inches (183 cm)
to minimize magnification of the heart and improve
resolution.
3. Which of the following is the correct central ray
(CR) entry point for a PA chest radiograph?
A) T7 (mid-thoracic) – level of the inferior angle of the
scapula
B) C7 (cervical)
C) L4 (lumbar)
D) Xiphoid process
Correct answer: A
Rationale: CR enters at T7 (mid-thorax) for PA chest;
centered at level of inferior angle of scapula.
4. Which of the following structures is best visualized
on an anteroposterior (AP) supine abdomen
radiograph (KUB)?
A) Lungs
B) Kidneys, ureters, bladder (KUB) – calcifications,
bowel gas pattern
,C) Heart
D) Cervical spine
Correct answer: B
Rationale: KUB radiograph visualizes kidneys,
ureters, bladder, and bowel gas pattern.
5. Which of the following is the correct patient
position for an AP supine abdomen (KUB)?
A) Prone (face down)
B) Supine (face up), arms at sides or on chest
C) Lateral decubitus
D) Standing
Correct answer: B
Rationale: AP supine abdomen is performed with
patient supine, arms placed on chest to avoid
superimposition.
6. What is the recommended SID for an AP supine
abdomen radiograph?
A) 40 inches (102 cm)
B) 72 inches (183 cm)
C) 20 inches (51 cm)
, D) 100 inches (254 cm)
Correct answer: A
Rationale: Standard SID for abdomen is 40 inches
(102 cm); reduces magnification and maintains image
quality.
7. Which of the following is the correct central ray
(CR) entry point for an AP supine abdomen?
A) Xiphoid process
B) Level of iliac crests (L4) – approximately 2 inches
above iliac crest
C) Symphysis pubis
D) T12
Correct answer: B
Rationale: CR centered at level of iliac crests (L4-L5)
for KUB.
8. Which of the following is the correct patient
position for a lateral cervical spine radiograph?
A) AP position
B) Erect or supine lateral, shoulders relaxed, chin
extended slightly
C) Prone
