Select the procedure used to obtain a fetal blood sample.

Choose the disadvantage to chorionic villus sampling.

Which procedure allows for sampling of the amniotic fluid?

Choose the gestational age for a genetic amniocentesis.

Which of the following can be done in the first six weeks of gestation?

Define a circumvallate placenta.

What is the area between the myometrium and placenta?

 Which of the following is the implantation of the placenta which lies low in the uterus resulting in total or partial covering of the cervix?

What is the delivery of the cord before the fetus?

 Which of the following maternal diseases can result in early placental maturation?

Select the acquired maternal problem which results in a placenta thickness of less than 2 cm.

What can result in mimicking of a placenta previa?

Which of the following results in a hypoechoic or complex mass in the subchorionic space?

Which of the following describes the sonographic characteristic of excessive Wharton's Jelly?

Which form of placenta previa lies within two centimeters of the internal os?

Identify the placental type where the chorionic villi attach but do not invade the myometrium.

Which of the following is the crossing of the internal os by the umbilical cord?

Which of the following indicates the onset of eclampsia?

Which of the following is the most common maternal disorder?

Rh-negative mother and a Rh-positive fetus can result in which of the following?

What causes the anemia seen with sickle cell disease?

When does Rh isoimmunization occur?

What is the smallest unit of a 3D volume?

Identify the software program used to measure volumes.

Select the use for the minimum mode.

What term describes the display of parallel images?

Choose the real-time display of volume information.

The multiple fibrous strands of amnion that develop in utero and may entangle fetal parts to cause amputations or malformations of the fetus are described as which of the following?

Which of the following is produced by the umbilical cord and membranes and the fetal lungs, skin and kidneys?

Which one of the following structures forms early in gestation and surrounds the embryo?

The fetal production of urine and the ability to swallow begin during which of the following weeks of gestation?

The amount of amniotic fluid is regulated by all of the following except the:

Oligohydramnios is associated with all of the following except:

What is the suspected cause of amniotic sheets?

Twin pregnancies have a _____________ median AFI than a singleton pregnancy.

Which of the following is not a function of the amniotic fluid?

Amniotic fluid may appear generous during _____________  weeks of gestation

Congenital anomalies associated with polyhydramnios include all of the following except:

Scars within the uterus, secondary to previous gynecological surgery, are called which one of the following?

The amniotic fluid generally appears anechoic on ultrasound.  Occasionally, however, mobile particles are observed that are most likely which one of the following?

Polyhydramnios is defined as an AFV grater than ____________ ml.

Signs of polyhydramnios include all of the following sonographic demonstrations except:

Select the structure that is the major source for amniotic production in early pregnancy

Which maternal bacterial infection raises the risk of fetal hydrops?

Which of the following goals seeks a greater balance of  "goods" over clinical "harms?"

The fusion of the chorion and amnion occurs between ____________ weeks.

A code of ethics for sonographers has been adopted by which one of the following organizations?

Cervical pregnancy frequently presents on ultrasound as a(n) __________ shaped uterus.

Which one of the following terms means matters that concern right and wrong conduct?

The diameter of the normal yolk sac should never exceed  ___________ mm.

_________________________ may contain bowel and organs that may protrude into the base of the umbilical cord.  Cannot be differentiated from normal physiological bowel migration until after 12 weeks.

Which of the following laboratory test is used to indicate pregnancy when the values are elevated?

The increased risk of massive hemorrhage in an ectopic pregnancy is located:

A sonogram at 10 weeks of gestation demonstrates a cystic area within the posterior cranium.  This appearance most likely represents which one of the following?

The villi on the myometrial side of the conceptus are known as which one of the following?

An increased risk of a complete hysterectomy is present when an ectopic pregnancy is locaed in which one of the following structures?

Informed consent is a(n) _______________- based right.

Implantation of the blastocyst into the uterine decidua is completed with the ____________days after fertilization.

_________________ occurs when the neural tube fails to close after 6 weeks gestation.

Multiple tiny clusters of grapelike echoes within the uterine cavity best describes which one of the following?

The most common cause of vaginal bleeding in the first trimester is which one of the following?

A cystic dilation of the fourth ventricle with dysgenesis or agenesis of the cerebellar vermis and frequently hydrocephaly.

In transabdominal scanning, a normal gestational sac can be consistently demonstrated when the beta hCG level is __________ mega international units per milliliter(mIU/ml)

The major biologic effects of ultrasound are believed to be which one of the following?

A sonographer can minimize thermal effects by which of the following?

A heterotopic pregnancy is which of the following?

An ovum without an embryo is know as which one of the following?

Embryos with heart rates below _____________ beats per minute (BPM) generally have a poor prognosis.

The interface between the decidua capsularis and echogenic vascular endometrium is which one of the following? 

A malformation of the prosencephalon to differentiate into cerebral hemispheres and lateral ventricles between four and eight weeks complete to partial failure of cleavage of the of the prosencephalon.

To calculate the mean sac diameter of a gestational sac, which one of the following formulas should be used?

The banana sign is one of the cranial signs that is associated with what fetal abnormality?

Which one of the following terms refers to a multiple pregnancy within the chorionic sac?

The crown-rump length measurement is considered most accurate through the ___________ gestational week.

A partial absence of the cranium is called which of the following abnormalities?

One of the most common abnormalities seen sonographically during the first trimester.  All appear on the posterior aspect of the fetal neck and upper thorax

On transabdominal imaging, an over distended bladder may give a false impression to which one of the following?

The congenital absence of the brain and cranial vault is termed:

In early pregnancy, the gestational sac size grows at a rate of ______________mm/day.

The most potentially life-threatening ectopic gestation is which one of the following?

A congenital fissure that remains open past 12 weeks in the wall of the abdomen just to the right of the umbilical cord is called which one of the following?

Which one of the following is the most common pelvic masses seen in a firs-trimester pregnancy?

The embryonic heart begins to beat at ___________ days.

Using a transvaginal approach, the first structure visualized within the gestational sac is which one of the following structures?

Which of the following abnormalities is most commonly associated with cystic hygroma

A gestational sac in which the embryo fails to develop is described as which one of the following?

Scalloping the frontal bones is called:

In the first trimester, herniated bowel will return within the abdominal cavity by the __________ week.

Transvaginally, an embryo with cardiac activity should be identified when the gestational sac measures _____________ millimeters(mm).

The serum level of beta hCG is ______________ with gestational trophoblastic disease.

The blastocyst typically enters the uterus _______________ days after fertilization.

The best sonographic correlation in the diagnosis of an ectopic pregnancy is the combination of no intrauterine pregnancy and which of the following?

Maternal conditions associated with polyhydramnios include all of the following except:

Which of the following techniques is both valid and reproducible in assessing the AFV?