Question 1

Measurement of the binocular distance is taken from the ___________ edge of one orbit to the ___________ edge of the contralateral orbit.

Accepted Answer

A)  outer; inner 
B)  inner; inner 
C)  outer; outer 
D)  inner; outer 
A)  outer; inner 
B)  inner; inner 
C)  outer; outer 
D)  inner; outer C

Question 2

Gestational age can best be predicted from which one of the following?

Accepted Answer

A)  Interocular distance 
B)  Orbital diameter 
C)  Intraocular distance 
D)  Binocular distance 
A)  Interocular distance 
B)  Orbital diameter 
C)  Intraocular distance 
D)  Binocular distance D

Question 3

Which one of the following statements about the femur length measurement is true?

Accepted Answer

A)  It is taken from the pointed end to the pointed end. 
B)  It should include the distal femoral epiphysis. 
C)  It includes only the femoral diaphysis. 
D)  It should include the femoral head. 
A)  It is taken from the pointed end to the pointed end. 
B)  It should include the distal femoral epiphysis. 
C)  It includes only the femoral diaphysis. 
D)  It should include the femoral head. C

Question 4

With normal transvaginal sonography, cardiac activity should be demonstrated when the CRL exceeds ______ mm.

Accepted Answer

A)  5 
B)  6 
C)  7 
D)  8 
A)  5 
B)  6 
C)  7 
D)  8

Question 5

Which one of the following sonographic signs refers to the shape of the cerebellum when a spinal defect is present?

Accepted Answer

A)  Sandwich 
B)  Strawberry 
C)  Banana 
D)  Lemon 
A)  Sandwich 
B)  Strawberry 
C)  Banana 
D)  Lemon

Question 6

Measurement of the BPD is taken from the __________ edge to the ___________.

Accepted Answer

A)  outer; inner edge 
B)  outer; outer edge 
C)  inner; inner edge 
D)  outer; falx multiplied by two 
A)  outer; inner edge 
B)  outer; outer edge 
C)  inner; inner edge 
D)  outer; falx multiplied by two

Question 7

All long bones should be measured if the difference between the femur length and all other biometric parameters is which one of the following?

Accepted Answer

A)  Greater than 3 weeks 
B)  Greater than 4 weeks 
C)  Greater than 1 week 
D)  2 weeks or greater 
A)  Greater than 3 weeks 
B)  Greater than 4 weeks 
C)  Greater than 1 week 
D)  2 weeks or greater

Question 8

Which one of the following measurements is devised to determine the normality of the fetal head shape?

Accepted Answer

A)  Abdominal circumference 
B)  BPD 
C)  Head circumference:abdominal circumference ratio 
D)  Cephalic index 
A)  Abdominal circumference 
B)  BPD 
C)  Head circumference:abdominal circumference ratio 
D)  Cephalic index

Question 9

The fetal orbits should be measured:

Accepted Answer

A)  at the same level as the BPD. 
B)  in a plane slightly caudal to the BPD. 
C)  in a plane slightly cephalic to the BPD. 
D)  in the occipitoanterior position. 
A)  at the same level as the BPD. 
B)  in a plane slightly caudal to the BPD. 
C)  in a plane slightly cephalic to the BPD. 
D)  in the occipitoanterior position.

Question 10

The plane used for a coronal head circumference (CHC) should include which of the following structures?

Accepted Answer

A)  CSP and falx cerebri 
B)  Third ventricle and brainstem 
C)  Thalamus and brainstem 
D)  Atrium of the lateral ventricle and thalamus 
A)  CSP and falx cerebri 
B)  Third ventricle and brainstem 
C)  Thalamus and brainstem 
D)  Atrium of the lateral ventricle and thalamus

Question 11

Linear acceleration of the embryonic heart rate correlates well with gestational age up to _________________ weeks.

Accepted Answer

A)  8 menstrual 
B)  9 gestational 
C)  10 menstrual 
D)  12 conception 
A)  8 menstrual 
B)  9 gestational 
C)  10 menstrual 
D)  12 conception

Question 12

Frontal bones of the cranium that collapse inward describes which one of the following abnormalities?

Accepted Answer

A)  Banana sign 
B)  Lemon sign 
C)  Mickey Mouse sign 
D)  Acrocephaly 
A)  Banana sign 
B)  Lemon sign 
C)  Mickey Mouse sign 
D)  Acrocephaly

Question 13

Which one of the following biometric measurements is more useful as a growth parameter?

Accepted Answer

A)  BPD 
B)  Head circumference 
C)  CRL 
D)  Abdominal circumference 
A)  BPD 
B)  Head circumference 
C)  CRL 
D)  Abdominal circumference

Question 14

When measuring the gestational sac, all of the following statements are true except:

Accepted Answer

A)  a distended urinary bladder can compress the sac from round to ovoid. 
B)  if the sac is round, one diameter should be measured. 
C)  if the sac is ovoid, measurements cannot be obtained. 
D)  if the sac is ovoid, the anteroposterior and width are measured to obtain mean diameter. 
A)  a distended urinary bladder can compress the sac from round to ovoid. 
B)  if the sac is round, one diameter should be measured. 
C)  if the sac is ovoid, measurements cannot be obtained. 
D)  if the sac is ovoid, the anteroposterior and width are measured to obtain mean diameter.

Question 15

Which one of the following fetal measurements is about as accurate as the BPD in determining gestational age?

Accepted Answer

A)  AC 
B)  Head circumference 
C)  Femur length 
D)  Cephalic index 
A)  AC 
B)  Head circumference 
C)  Femur length 
D)  Cephalic index

Question 16

The condition that shows the fetal head elongated in the transverse diameter and shortened in the anteroposterior diameter is known as which one of the following?

Accepted Answer

A)  Dolichocephaly 
B)  Elongichocephaly 
C)  Brachycephaly 
D)  Minicephaly 
A)  Dolichocephaly 
B)  Elongichocephaly 
C)  Brachycephaly 
D)  Minicephaly

Question 17

The biparietal diameter (BPD) is the measurement of the fetal head at the level of which of the following structures?

Accepted Answer

A)  Thalamus and cavum septum pellucidum (CSP) 
B)  Frontal horns and third ventricle 
C)  Peduncles and septum pellucidum 
D)  Thalamus and fourth ventricle 
A)  Thalamus and cavum septum pellucidum (CSP) 
B)  Frontal horns and third ventricle 
C)  Peduncles and septum pellucidum 
D)  Thalamus and fourth ventricle

Question 18

With transvaginal sonography, the earliest appearance of a normal intrauterine gestational sac should be seen with a serum beta human chorionic gonadotropin (hCG) greater than _____ mega international units per milliliter (mIU/ml).

Accepted Answer

A)  500 
B)  1000 
C)  1500 
D)  2000 
A)  500 
B)  1000 
C)  1500 
D)  2000

Question 19

The fetus is categorized into the small, average, or large growth percentiles in which one of the following methods?

Accepted Answer

A)  Intrauterine growth restriction (IUGR) 
B)  Biophysical profile 
C)  Growth-adjusted sonar age 
D)  Age-range analysis 
A)  Intrauterine growth restriction (IUGR) 
B)  Biophysical profile 
C)  Growth-adjusted sonar age 
D)  Age-range analysis

Question 20

Which one of the following statements describes the binocular distance (BD)?

Accepted Answer

A)  It includes both orbits at the same time. 
B)  It is the length between the two orbits. 
C)  It is the distance of an orbit. 
D)  It is the depth of both orbits. 
A)  It includes both orbits at the same time. 
B)  It is the length between the two orbits. 
C)  It is the distance of an orbit. 
D)  It is the depth of both orbits.

Exam 52: Obstetric Measurements and Gestational Age

Measurement of the binocular distance is taken from the ___________ edge of one orbit to the ___________ edge of the contralateral orbit.

Gestational age can best be predicted from which one of the following?

Which one of the following statements about the femur length measurement is true?

With normal transvaginal sonography, cardiac activity should be demonstrated when the CRL exceeds ______ mm.

Which one of the following sonographic signs refers to the shape of the cerebellum when a spinal defect is present?

Measurement of the BPD is taken from the __________ edge to the ___________.

All long bones should be measured if the difference between the femur length and all other biometric parameters is which one of the following?

Which one of the following measurements is devised to determine the normality of the fetal head shape?

The fetal orbits should be measured:

The plane used for a coronal head circumference (CHC) should include which of the following structures?

Linear acceleration of the embryonic heart rate correlates well with gestational age up to _________________ weeks.

Frontal bones of the cranium that collapse inward describes which one of the following abnormalities?

Which one of the following biometric measurements is more useful as a growth parameter?

When measuring the gestational sac, all of the following statements are true except:

Which one of the following fetal measurements is about as accurate as the BPD in determining gestational age?

The condition that shows the fetal head elongated in the transverse diameter and shortened in the anteroposterior diameter is known as which one of the following?

The biparietal diameter (BPD) is the measurement of the fetal head at the level of which of the following structures?

With transvaginal sonography, the earliest appearance of a normal intrauterine gestational sac should be seen with a serum beta human chorionic gonadotropin (hCG) greater than _____ mega international units per milliliter (mIU/ml).

The fetus is categorized into the small, average, or large growth percentiles in which one of the following methods?

Which one of the following statements describes the binocular distance (BD)?

Foundations of Clinical Sonography

Essentials of Patient Care for the Sonographer

Ergonomics and Musculoskeletal Issues in Sonography

Anatomic and Physiologic Relationships Within the Abdominopelvic Cavity

Comparative Sectional Anatomy of the Abdominopelvic Cavity

Basic Ultrasound Imaging: Techniques, Terminology, and Tips

Imaging and Doppler Artifacts

Vascular System

Liver

Gallbladder and the Biliary System

Spleen

Pancreas

Gastrointestinal Tract

Peritoneal Cavity and Abdominal Wall

Urinary System

Retroperitoneum

Abdominal Applications of Ultrasound Contrast Agents

Ultrasound-Guided Interventional Techniques

Emergent Ultrasound Procedures

Sonographic Techniques in the Transplant Patient

Breast

Thyroid and Parathyroid Glands

Scrotum

Musculoskeletal System

Neonatal and Pediatric Abdomen

Neonatal and Pediatric Adrenal and Urinary System

Neonatal and Infant Head

Infant and Pediatric Hip

The Neonatal and Infant Spine

Anatomic and Physiologic Relationships Within the Thoracic Cavity

Understanding Hemodynamics

Introduction to Echocardiographic Techniques, Terminology, and Tips

Introduction to Clinical Echocardiography: Left-Sided Valvular Heart Disease

Introduction to Clinical Echocardiography: Pericardial Disease, Cardiomyopathies, and Tumors

Fetal Echocardiography: Beyond the Four Chambers

Fetal Echocardiography: Congenital Heart Disease

Extracranial Cerebrovascular Evaluation

Intracranial Cerebrovascular Evaluation

Peripheral Arterial Evaluation

Peripheral Venous Evaluation

Normal Anatomy and Physiology of the Female Pelvis

Sonographic and Doppler Evaluation of the Female Pelvis

Pathology of the Uterus

Pathology of the Ovaries

Pathology of the Adnexa

Role of Ultrasound in Evaluating Female Infertility

Role of Sonography in Obstetrics

Clinical Ethics for Obstetric Sonography

The Normal First Trimester

First-Trimester Complications

Sonography of the Second and Third Trimesters

Fetal Growth Assessment by Sonography

Sonography and High-Risk Pregnancy

Prenatal Diagnosis of Congenital Anomalies

Placenta

Umbilical Cord

Amniotic Fluid and Fetal Membranes

Fetal Face and Neck

Fetal Neural Axis

Measurement of the binocular distance is taken from the _ edge of one orbit to the _ edge of the contralateral orbit.

Measurement of the BPD is taken from the edge to the _.