Pediatric ARDMS Exam & Practice Exam Master Test Bank |
400 Original Exam-Style Multiple-Choice Questions &
Detailed Clinical Rationales
Pass your American Registry for Diagnostic Medical Sonography certification on your
first attempt with this massive, high-yield Pediatric Sonography (PE) master practice
test bank containing questions 1 to 300. Master critical diagnostic ultrasound domains,
including pediatric neurosonography, neonatal hips and spines, congenital
abdominal pathologies, hypertrophic pyloric stenosis, and advanced Doppler
hemodynamics. Every verified, original exam-style question features a highly detailed
clinical rationale to sharpen your imaging artifact recognition, scan plane precision, and
guarantee your ARDMS credentials.
1. Which ultrasound finding is most characteristic of a meconium ileus in a neonate with
cystic fibrosis?
A. Target sign
B. Pseudokidney sign
C. Hyperechoic bowel with dilated loops
D. Whirlpool sign
Answer: C. Hyperechoic bowel with dilated loops
Rationale: Meconium ileus in cystic fibrosis presents with dilated bowel loops and
hyperechoic meconium due to inspissated stool.
2. What is the normal portal vein diameter in a healthy child?
A. <5 mm
B. <8 mm
C. <13 mm
D. <20 mm
Answer: C. <13 mm
,Rationale: The normal portal vein diameter in children is typically less than 13 mm.
Dilatation may indicate portal hypertension.
3. Which ultrasound finding is most consistent with a normal neonatal kidney?
A. Echogenic medullary pyramids
B. Hypoechoic cortex
C. Echogenic sinus
D. All of the above
Answer: D. All of the above
Rationale: The normal neonatal kidney has echogenic medullary pyramids, a hypoechoic
cortex, and an echogenic renal sinus.
4. A child presents with a painless scrotal mass. Ultrasound shows a “bag of worms”
appearance. What is the diagnosis?
A. Hydrocele
B. Varicocele
C. Spermatocele
D. Testicular tumor
Answer: B. Varicocele
Rationale: Varicocele appears as multiple dilated veins in the pampiniform plexus, often
described as a “bag of worms.” It is more common on the left side.
5. Which measurement is used to diagnose developmental dysplasia of the hip on
ultrasound?
A. Alpha angle
B. Beta angle
C. Cartilage thickness
D. Joint space width
,Answer: A. Alpha angle
Rationale: The alpha angle measures the bony acetabular roof. An alpha angle less than
60 degrees is consistent with hip dysplasia.
6. What is the sonographic appearance of a normal neonatal adrenal gland?
A. Thin, echogenic gland
B. Thick, hypoechoic gland
C. Cystic gland
D. Calcified gland
Answer: A. Thin, echogenic gland
Rationale: The normal neonatal adrenal gland is thin and echogenic, often with a
hypoechoic cortex and hyperechoic medulla.
7. A child with a suspected neuroblastoma is evaluated. Which finding is expected?
A. Calcifications
B. Encasement of vessels
C. Heterogeneous mass
D. All of the above
Answer: D. All of the above
Rationale: Neuroblastoma often presents with calcifications, vessel encasement, and a
heterogeneous mass.
8. Which ultrasound finding is most consistent with a normal pediatric liver?
A. Homogeneous echogenicity
B. Heterogeneous echogenicity
C. Hyperechoic
D. Hypoechoic
, Answer: A. Homogeneous echogenicity
Rationale: The normal pediatric liver is homogeneous with medium-level echogenicity,
similar to or slightly more echogenic than the kidney.
9. A child with hepatomegaly is evaluated. Ultrasound shows increased echogenicity of
the liver. What is the most likely diagnosis?
A. Hepatic steatosis
B. Hepatic fibrosis
C. Hepatitis
D. All of the above
Answer: D. All of the above
Rationale: Hepatic steatosis, fibrosis, and hepatitis can all cause increased liver
echogenicity.
10. Which ultrasound finding is characteristic of a normal gallbladder in a child?
A. Anechoic, thin-walled
B. Echogenic, thick-walled
C. Cystic with septations
D. Solid
Answer: A. Anechoic, thin-walled
Rationale: The normal gallbladder is anechoic with a thin wall and is distensible.
11. A child with right upper quadrant pain is evaluated. Ultrasound shows a thickened
gallbladder wall. What is the most likely diagnosis?
A. Cholecystitis
B. Cholelithiasis
C. Biliary atresia
D. Choledochal cyst
400 Original Exam-Style Multiple-Choice Questions &
Detailed Clinical Rationales
Pass your American Registry for Diagnostic Medical Sonography certification on your
first attempt with this massive, high-yield Pediatric Sonography (PE) master practice
test bank containing questions 1 to 300. Master critical diagnostic ultrasound domains,
including pediatric neurosonography, neonatal hips and spines, congenital
abdominal pathologies, hypertrophic pyloric stenosis, and advanced Doppler
hemodynamics. Every verified, original exam-style question features a highly detailed
clinical rationale to sharpen your imaging artifact recognition, scan plane precision, and
guarantee your ARDMS credentials.
1. Which ultrasound finding is most characteristic of a meconium ileus in a neonate with
cystic fibrosis?
A. Target sign
B. Pseudokidney sign
C. Hyperechoic bowel with dilated loops
D. Whirlpool sign
Answer: C. Hyperechoic bowel with dilated loops
Rationale: Meconium ileus in cystic fibrosis presents with dilated bowel loops and
hyperechoic meconium due to inspissated stool.
2. What is the normal portal vein diameter in a healthy child?
A. <5 mm
B. <8 mm
C. <13 mm
D. <20 mm
Answer: C. <13 mm
,Rationale: The normal portal vein diameter in children is typically less than 13 mm.
Dilatation may indicate portal hypertension.
3. Which ultrasound finding is most consistent with a normal neonatal kidney?
A. Echogenic medullary pyramids
B. Hypoechoic cortex
C. Echogenic sinus
D. All of the above
Answer: D. All of the above
Rationale: The normal neonatal kidney has echogenic medullary pyramids, a hypoechoic
cortex, and an echogenic renal sinus.
4. A child presents with a painless scrotal mass. Ultrasound shows a “bag of worms”
appearance. What is the diagnosis?
A. Hydrocele
B. Varicocele
C. Spermatocele
D. Testicular tumor
Answer: B. Varicocele
Rationale: Varicocele appears as multiple dilated veins in the pampiniform plexus, often
described as a “bag of worms.” It is more common on the left side.
5. Which measurement is used to diagnose developmental dysplasia of the hip on
ultrasound?
A. Alpha angle
B. Beta angle
C. Cartilage thickness
D. Joint space width
,Answer: A. Alpha angle
Rationale: The alpha angle measures the bony acetabular roof. An alpha angle less than
60 degrees is consistent with hip dysplasia.
6. What is the sonographic appearance of a normal neonatal adrenal gland?
A. Thin, echogenic gland
B. Thick, hypoechoic gland
C. Cystic gland
D. Calcified gland
Answer: A. Thin, echogenic gland
Rationale: The normal neonatal adrenal gland is thin and echogenic, often with a
hypoechoic cortex and hyperechoic medulla.
7. A child with a suspected neuroblastoma is evaluated. Which finding is expected?
A. Calcifications
B. Encasement of vessels
C. Heterogeneous mass
D. All of the above
Answer: D. All of the above
Rationale: Neuroblastoma often presents with calcifications, vessel encasement, and a
heterogeneous mass.
8. Which ultrasound finding is most consistent with a normal pediatric liver?
A. Homogeneous echogenicity
B. Heterogeneous echogenicity
C. Hyperechoic
D. Hypoechoic
, Answer: A. Homogeneous echogenicity
Rationale: The normal pediatric liver is homogeneous with medium-level echogenicity,
similar to or slightly more echogenic than the kidney.
9. A child with hepatomegaly is evaluated. Ultrasound shows increased echogenicity of
the liver. What is the most likely diagnosis?
A. Hepatic steatosis
B. Hepatic fibrosis
C. Hepatitis
D. All of the above
Answer: D. All of the above
Rationale: Hepatic steatosis, fibrosis, and hepatitis can all cause increased liver
echogenicity.
10. Which ultrasound finding is characteristic of a normal gallbladder in a child?
A. Anechoic, thin-walled
B. Echogenic, thick-walled
C. Cystic with septations
D. Solid
Answer: A. Anechoic, thin-walled
Rationale: The normal gallbladder is anechoic with a thin wall and is distensible.
11. A child with right upper quadrant pain is evaluated. Ultrasound shows a thickened
gallbladder wall. What is the most likely diagnosis?
A. Cholecystitis
B. Cholelithiasis
C. Biliary atresia
D. Choledochal cyst
