Question 1

The most common indications for the sampling of fetal blood are the _________________________ and ______________________.

Accepted Answer

confirmation of abnormal findings found on amniocentesis or chorionic villi sampling; the need for rapid chromosomal diagnosis
The most common indications for the sampling of fetal blood are the confirmation of abnormal findings found on amniocentesis or chorionic villus sampling and the need for rapid chromosomal diagnosis.

Question 2

Increases in the pulsatility of the inferior vena cava are associated with

Accepted Answer

A)  macrosomia. 
B)  fetal hypoxia. 
C)  twin gestations. 
D)  intrauterine growth restriction. 
A)  macrosomia. 
B)  fetal hypoxia. 
C)  twin gestations. 
D)  intrauterine growth restriction. B

Question 3

In a twin gestation, division of the zygote before day 4 postfertilization results in a

Accepted Answer

A)  monochorionic-monoamniotic gestation. 
B)  monochorionic-diamniotic gestation. 
C)  dichorionic-monoamniotic gestation. 
D)  dichorionic-diamniotic gestation. 
A)  monochorionic-monoamniotic gestation. 
B)  monochorionic-diamniotic gestation. 
C)  dichorionic-monoamniotic gestation. 
D)  dichorionic-diamniotic gestation. D

Question 4

__________________________ measures the degree of fetal lung development.

Accepted Answer

The ratio of lecithin to sphin

Question 5

Twin gestations result from fertilization of either _______ or a _______.

Accepted Answer

two separate ova; single ovum

Question 6

When certain defects are found during a pregnancy, high concentrations of _____________________ are found in amniotic fluid samples.

Accepted Answer

alpha-fetoprotein
When certain

Question 7

________________was developed as a 2nd trimester means of collecting a sample of amniotic fluid, which is used for a variety of metabolic assays or for DNA extraction.

Accepted Answer

A)  Amniocentesis 
B)  Ultrasound exam 
C)  Chorionic villus sampling 
D)  Biophysical profile 
A)  Amniocentesis 
B)  Ultrasound exam 
C)  Chorionic villus sampling 
D)  Biophysical profile

Question 8

The interfetal membrane is

Accepted Answer

A)  a congenital malformation found with multifetal gestations. 
B)  identifiable in a diamniotic twin gestation. 
C)  only associated with same-gender twin gestations. 
D)  predominantly part of the cord. 
A)  a congenital malformation found with multifetal gestations. 
B)  identifiable in a diamniotic twin gestation. 
C)  only associated with same-gender twin gestations. 
D)  predominantly part of the cord.

Question 9

Which component of amniotic fluid increases beyond normal limits when certain fetal defects are present?

Accepted Answer

A)  Progesterone 
B)  Human chorionic gonadotropin (hCG) 
C)  Alpha-fetoprotein (AFP) 
D)  Luteinizing hormone (LH) 
A)  Progesterone 
B)  Human chorionic gonadotropin (hCG) 
C)  Alpha-fetoprotein (AFP) 
D)  Luteinizing hormone (LH)

Question 10

The lecithin-sphingomyelin (L-S) ratio is used to

Accepted Answer

A)  determine lung maturity. 
B)  rule out uterine infections. 
C)  determine cardiac activity. 
D)  determine fetal abnormalities. 
A)  determine lung maturity. 
B)  rule out uterine infections. 
C)  determine cardiac activity. 
D)  determine fetal abnormalities.

Question 11

In severe cases of intrauterine growth restriction, which fetal artery usually can be detected?

Accepted Answer

A)  Renal artery 
B)  Hepatic artery 
C)  Splenic artery 
D)  Superior mesenteric artery 
A)  Renal artery 
B)  Hepatic artery 
C)  Splenic artery 
D)  Superior mesenteric artery

Question 12

When it must be determined whether a fetus is in distress, a(an) _________ may be performed.

Accepted Answer

A)  amniocentesis 
B)  ultrasound exam 
C)  chorionic villus sampling 
D)  biophysical profile 
A)  amniocentesis 
B)  ultrasound exam 
C)  chorionic villus sampling 
D)  biophysical profile

Question 13

Abnormal fetal aortic flow velocity waveforms have been associated with

Accepted Answer

A)  musculoskeletal abnormalities. 
B)  genitourinary dysfunctions. 
C)  neurologic dysfunctions. 
D)  cardiac dysfunctions. 
A)  musculoskeletal abnormalities. 
B)  genitourinary dysfunctions. 
C)  neurologic dysfunctions. 
D)  cardiac dysfunctions.

Question 14

Which of the following is NOT a variable observed during a biophysical profile examination?

Accepted Answer

A)  Fetal breathing 
B)  Fetal heart rate 
C)  Fetal urination 
D)  Amniotic fluid volume 
A)  Fetal breathing 
B)  Fetal heart rate 
C)  Fetal urination 
D)  Amniotic fluid volume

Question 15

If division occurs in the embryonic disk more than 13 days after fertilization, the result is

Accepted Answer

A)  the demise of one twin. 
B)  a dichorionic-monoamniotic gestation. 
C)  conjoined twins. 
D)  a dichorionic-diamniotic gestation. 
A)  the demise of one twin. 
B)  a dichorionic-monoamniotic gestation. 
C)  conjoined twins. 
D)  a dichorionic-diamniotic gestation.

Question 16

Scores lower than 8 on a biophysical profile are

Accepted Answer

A)  usually followed up with additional testing or induced labor. 
B)  associated with a good perinatal outcome. 
C)  followed up with a fetal intravascular transfusion. 
D)  considered questionable and followed up with another profile in 6 weeks. 
A)  usually followed up with additional testing or induced labor. 
B)  associated with a good perinatal outcome. 
C)  followed up with a fetal intravascular transfusion. 
D)  considered questionable and followed up with another profile in 6 weeks.

Question 17

Which procedure is done earliest in a pregnancy?

Accepted Answer

A)  Chorionic villus sampling 
B)  Amniocentesis for the L-S ratio 
C)  Amniocentesis for genetic analysis 
D)  Umbilical cord transfusions 
A)  Chorionic villus sampling 
B)  Amniocentesis for the L-S ratio 
C)  Amniocentesis for genetic analysis 
D)  Umbilical cord transfusions

Question 18

Ultrasound is used during in utero procedures to confirm that the needle is in the correct position and that ___________________________.

Accepted Answer

the fetus is not in the needle

Question 19

In multifetal gestations, identifying chorionicity (placentae) is most accurate

Accepted Answer

A)  during the 3rd trimester. 
B)  at exactly 12 gestational weeks. 
C)  from gestational weeks 6 through 10. 
D)  from gestational week 14 through gestational week 16. 
A)  during the 3rd trimester. 
B)  at exactly 12 gestational weeks. 
C)  from gestational weeks 6 through 10. 
D)  from gestational week 14 through gestational week 16.

Question 20

Amniocentesis is associated with which risk(s)?

Accepted Answer

A)  Infection 
B)  Injury to the fetus 
C)  Premature delivery 
D)  All of the above 
A)  Infection 
B)  Injury to the fetus 
C)  Premature delivery 
D)  All of the above

Exam 22: High-Risk Obstetric Sonography

The most common indications for the sampling of fetal blood are the _________________________ and ______________________.

Increases in the pulsatility of the inferior vena cava are associated with

In a twin gestation, division of the zygote before day 4 postfertilization results in a

__________________________ measures the degree of fetal lung development.

Twin gestations result from fertilization of either _______ or a _______.

When certain defects are found during a pregnancy, high concentrations of _____________________ are found in amniotic fluid samples.

________________was developed as a 2nd trimester means of collecting a sample of amniotic fluid, which is used for a variety of metabolic assays or for DNA extraction.

The interfetal membrane is

Which component of amniotic fluid increases beyond normal limits when certain fetal defects are present?

The lecithin-sphingomyelin (L-S) ratio is used to

In severe cases of intrauterine growth restriction, which fetal artery usually can be detected?

When it must be determined whether a fetus is in distress, a(an) _________ may be performed.

Abnormal fetal aortic flow velocity waveforms have been associated with

Which of the following is NOT a variable observed during a biophysical profile examination?

If division occurs in the embryonic disk more than 13 days after fertilization, the result is

Scores lower than 8 on a biophysical profile are

Which procedure is done earliest in a pregnancy?

Ultrasound is used during in utero procedures to confirm that the needle is in the correct position and that ___________________________.

In multifetal gestations, identifying chorionicity (placentae) is most accurate

Amniocentesis is associated with which risk(s)?

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

First Trimester Obstetrics 0 to 12 Weeks

Second and Third Trimester Obstetrics 13 to 42 Weeks

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

Filters

The most common indications for the sampling of fetal blood are the ___ and .

Twin gestations result from fertilization of either _ or a _.