Question 1

An anechoic area identified sonographically in the embryonic skull at 8 weeks is

Accepted Answer

A)  abnormal. 
B)  the vitelline duct. 
C)  the hindbrain. 
D)  the midbrain. 
A)  abnormal. 
B)  the vitelline duct. 
C)  the hindbrain. 
D)  the midbrain. C

Question 2

The embryonic primative heart starts to beat at the beginning of which gestational week?

Accepted Answer

A)  week 4 
B)  week 6 
C)  week 8 
D)  week 10 
A)  week 4 
B)  week 6 
C)  week 8 
D)  week 10 B

Question 3

Separation of chorion and amnion membranes at 14 weeks is

Accepted Answer

A)  within normal limits. 
B)  a sign of twins. 
C)  due to a large yolk sac. 
D)  a sign of fetal death. 
A)  within normal limits. 
B)  a sign of twins. 
C)  due to a large yolk sac. 
D)  a sign of fetal death. A

Question 4

Human chorionic gonadotropin (hCG) is secreted by the developing:

Accepted Answer

A)  ovary. 
B)  oviduct. 
C)  zygote. 
D)  placenta. 
A)  ovary. 
B)  oviduct. 
C)  zygote. 
D)  placenta.

Question 5

Myometrial contractions are distinguished from a myoma by their:

Accepted Answer

A)  outward bulge 
B)  echogenicity 
C)  inward bulge 
D)  location 
A)  outward bulge 
B)  echogenicity 
C)  inward bulge 
D)  location

Question 6

Lacunae are structures in the

Accepted Answer

A)  ovary. 
B)  fetal brain. 
C)  amnion. 
D)  placenta. 
A)  ovary. 
B)  fetal brain. 
C)  amnion. 
D)  placenta.

Question 7

Which is NOT a common indication for a 1st trimester ultrasound examination?

Accepted Answer

A)  Vaginal bleeding 
B)  Size bigger than dates 
C)  Size smaller than dates 
D)  Lack of sensation of fetal movement 
A)  Vaginal bleeding 
B)  Size bigger than dates 
C)  Size smaller than dates 
D)  Lack of sensation of fetal movement

Question 8

The embryonic gut herniates

Accepted Answer

A)  into the small bowel. 
B)  at 5 to 6 weeks GA. 
C)  into the base of the umbilical cord. 
D)  into the amnion. 
A)  into the small bowel. 
B)  at 5 to 6 weeks GA. 
C)  into the base of the umbilical cord. 
D)  into the amnion.

Question 9

What is the corpus luteum?

Accepted Answer

A)  The outermost tissues of the developing embryo 
B)  The part of early development that surrounds the amniotic cavity 
C)  The trophoblast layer of the blastocyst 
D)  What remains of the ovarian follicle after ovulation 
A)  The outermost tissues of the developing embryo 
B)  The part of early development that surrounds the amniotic cavity 
C)  The trophoblast layer of the blastocyst 
D)  What remains of the ovarian follicle after ovulation

Question 10

The double bleb sign

Accepted Answer

A)  describes the early blastocyst. 
B)  is the sonographic appearance of the embryo disk lying between the secondary yolk sac and developing amniotic cavity. 
C)  distinguishes a pseudo sac from a gestational sac. 
D)  is eventually obliterated by the amniotic cavity. 
A)  describes the early blastocyst. 
B)  is the sonographic appearance of the embryo disk lying between the secondary yolk sac and developing amniotic cavity. 
C)  distinguishes a pseudo sac from a gestational sac. 
D)  is eventually obliterated by the amniotic cavity.

Question 11

The term gestational sac describes the

Accepted Answer

A)  endometrial cavity. 
B)  pseudo sac. 
C)  yolk sac. 
D)  chorionic cavity. 
A)  endometrial cavity. 
B)  pseudo sac. 
C)  yolk sac. 
D)  chorionic cavity.

Question 12

A sonographic marker of the chorionic cavity is

Accepted Answer

A)  echogenic. 
B)  anechoic. 
C)  hyperechoic. 
D)  triple line. 
A)  echogenic. 
B)  anechoic. 
C)  hyperechoic. 
D)  triple line.

Question 13

Membranes formed from scarring or adhesions secondary to surgery or infection are called

Accepted Answer

A)  succenturiate. 
B)  uterine synechia. 
C)  amniotic bands. 
D)  amnion-chorionic separation. 
A)  succenturiate. 
B)  uterine synechia. 
C)  amniotic bands. 
D)  amnion-chorionic separation.

Question 14

The most accurate method of dating gestation is the

Accepted Answer

A)  sac size. 
B)  crown-rump length (CRL). 
C)  biparietal diameter. 
D)  femur length. 
A)  sac size. 
B)  crown-rump length (CRL). 
C)  biparietal diameter. 
D)  femur length.

Question 15

The double sac sign

Accepted Answer

A)  describes the early blastocyst. 
B)  distinguishes a pseudo sac from a gestational sac. 
C)  is eventually obliterated by the amniotic cavity. 
D)  describes the sonographic appearance of the trilaminar embryonic disk. 
A)  describes the early blastocyst. 
B)  distinguishes a pseudo sac from a gestational sac. 
C)  is eventually obliterated by the amniotic cavity. 
D)  describes the sonographic appearance of the trilaminar embryonic disk.

Question 16

The chorionic villi

Accepted Answer

A)  may become enlarged and cystic. 
B)  contain the yolk sac. 
C)  are eventually obliterated by the amniotic cavity. 
D)  are fingerlike projections of the trophoblast layer that extend into the deciduate endometrium. 
A)  may become enlarged and cystic. 
B)  contain the yolk sac. 
C)  are eventually obliterated by the amniotic cavity. 
D)  are fingerlike projections of the trophoblast layer that extend into the deciduate endometrium.

Question 17

The amniotic fluid volume (AFV) normally is reduced by

Accepted Answer

A)  fetal regurgitation. 
B)  maternal urination. 
C)  fetal swallowing. 
D)  fetal urination. 
A)  fetal regurgitation. 
B)  maternal urination. 
C)  fetal swallowing. 
D)  fetal urination.

Question 18

On a short axis view, the umbilical cord presents as

Accepted Answer

A)  a single large, round, anechoic vessel flanked by two small, round, anechoic vessels encircled by thick, bright walls. 
B)  a single small, round, anechoic vessel interposed between two large, round, hypoechoic vessels. 
C)  two linear, anechoic vessels with bright walls that join the fetal portal vein and a single linear, anechoic vessel with hyperechoic walls that joins the urinary bladder. 
D)  a single large, anechoic vessel flanked by two linear, anechoic vessels. 
A)  a single large, round, anechoic vessel flanked by two small, round, anechoic vessels encircled by thick, bright walls. 
B)  a single small, round, anechoic vessel interposed between two large, round, hypoechoic vessels. 
C)  two linear, anechoic vessels with bright walls that join the fetal portal vein and a single linear, anechoic vessel with hyperechoic walls that joins the urinary bladder. 
D)  a single large, anechoic vessel flanked by two linear, anechoic vessels.

Question 19

Progesterone is produced by the

Accepted Answer

A)  uterus. 
B)  pituitary gland. 
C)  corpus luteum. 
D)  none of the above 
A)  uterus. 
B)  pituitary gland. 
C)  corpus luteum. 
D)  none of the above

Question 20

Gestational age determined by the size of the gestational sac uses

Accepted Answer

A)  two right angle measurements in a longitudinal section. 
B)  the mean sac diameter (MS
D) . 
C)  addition of the number 30 to the sac depth. 
D)  addition of the number 30 to the CRL. 
A)  two right angle measurements in a longitudinal section. 
B)  the mean sac diameter (MS
D) . 
C)  addition of the number 30 to the sac depth. 
D)  addition of the number 30 to the CRL.

Exam 20: First Trimester Obstetrics 0 to 12 Weeks

An anechoic area identified sonographically in the embryonic skull at 8 weeks is

The embryonic primative heart starts to beat at the beginning of which gestational week?

Separation of chorion and amnion membranes at 14 weeks is

Human chorionic gonadotropin (hCG) is secreted by the developing:

Myometrial contractions are distinguished from a myoma by their:

Lacunae are structures in the

Which is NOT a common indication for a 1st trimester ultrasound examination?

The embryonic gut herniates

What is the corpus luteum?

The double bleb sign

The term gestational sac describes the

A sonographic marker of the chorionic cavity is

Membranes formed from scarring or adhesions secondary to surgery or infection are called

The most accurate method of dating gestation is the

The double sac sign

The chorionic villi

The amniotic fluid volume (AFV) normally is reduced by

On a short axis view, the umbilical cord presents as

Progesterone is produced by the

Gestational age determined by the size of the gestational sac uses

Before and After the Ultrasound Examination

Ultrasound Instrumentation: Knobology, Imaging Processing, and Storage

General Patient Care

First Scanning Experience

Interdependent Body Systems

Anatomy Layering and Sectional Anatomy

Embryology

The Abdominal Aorta

The Inferior Vena Cava

The Portal Venous System

Abdominal Vasculature

The Liver

The Biliary System

The Pancreas

The Urinary System

The Spleen

The Gastrointestinal System

The Prostate Gland and Seminal Vesicles

The Female Pelvis

Second and Third Trimester Obstetrics 13 to 42 Weeks

High-Risk Obstetric Sonography

The Thyroid and Parathyroid Glands

Breast Sonography

Penile and Scrotal Ultrasound

The Neonatal Brain

Pediatric Echocardiography

Adult Echocardiography

Vascular Technology

Three-Dimensional Ultrasound

Interventional and Intraoperative Ultrasound

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