midterm

Question 1

A ___________ transducer may provide optimal images well into the third trimester on a thin patient.

Answer 1

5.0 MHz

Question 2

A correctly filled bladder allows for imaging of the ________________ and lower placental edge.

Answer 2

Cervix

Question 3

A fetus positioned wit the cranium in the superior uterus, rump in the inferior uterus, and spine at the maternal right uterus is labeled:

Answer 3

breech, left lateral

Question 4

A normal gestation last approximately:

Answer 4

280 days

Question 5

A sonogram at 8 weeks of gestation demonstrates a cystic area within the posterior cranium. This appearance most likely represents which one of the following?

Answer 5

Normal rhombencephalon

Question 6

At what age have the rudimentary forms of all embryonic organs and structures developed?

Answer 6

Almost 11 weeks menstrual/GA

Question 7

Choose the position that is the same as a cephalic presentation.

Answer 7

vertex

Question 8

Endovaginal transducers aid the clinician in determing all except:

Answer 8

fluid in Morison pouch

Question 9

Identify the blastocyst layer that eventually develops into the embyryonic portion of the placenta.

Answer 9

Trophoblast

Question 10

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

Answer 10

1-2

Question 11

In the breech fetus with the transverse spine and orientation marker to the right of the monitor, the fetus is lying __

Answer 11

on it’s right side

Question 12

in the first trimester, herniated bowel will return within the abdominal cavity by the ____________ week

Answer 12

12th

Question 13

Name the solid ball of developing cells that occurs after fertilization.

Answer 13

morula

Question 14

Select the normal chromosome number for an ovum

Answer 14

22X or 22Y

Question 15

The blastocyst typically enters the uterus ___________ days after fertilization.

Answer 15

6 to 8

Question 16

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

Answer 16

Twelfth

Question 17

The diameter of the normal yolk sac should never exceed____________ mm.

Answer 17

6mm

Question 18

The embryonic heart begins to beat at _________ days after conception.

Answer 18

23

Question 19

The inability of some females to lay supine during weeks 20 - term pregnancy because of a hypotensive state is known as:

Answer 19

aortocaval compression syndrome

Question 20

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

Answer 20

Double decidual sign

Question 21

The portion of the endometrium that surrounds the blastocyst is:

Answer 21

decidua capsularis

Question 22

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

Answer 22

Decidua basalis

Question 23

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

Answer 23

Length x Width x Height) / 3

Question 24

Ultrasound in the first trimester is mostly performed to demonstrate:

Answer 24

EDD, GA, and likelihood of continuing to term

Question 25

Using Naegele's rule, what would be the estimated due date for a woman with a LMP of September 10th ?

Answer 25

June 17th

Question 26

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

Answer 26

Secondary yolk sac

Question 27

What is the area between the myometrium and the placenta?

Answer 27

Retroplacental

Question 28

What is the formula to calculate gestational age in weeks?

Answer 28

Menstrual age in days/7

Question 29

What portion of the fallopian tube does fertilization generally occur in ?

Answer 29

ampullary

Question 30

What prevents more than one sperm from entering an ovum?

Answer 30

Zona pellucida

Question 31

What structure images after the secondary yolk sac?

Answer 31

Embryo

Question 32

What would be the correct formula to calculate gestational age in days?

Answer 32

MSD + 30

Question 33

What would be the gestational age of an embryo with a CRL of 0.38 cm?

Answer 33

6.3 weeks

Question 34

When the fetus is vertex and the transverse spine is on the left side of the monitor, the fetus is lying__

Answer 34

on it's right side

Question 35

Where does implantation of the embryo occur?

Answer 35

endometrium

Question 36

Which hormone triggers ovulation?

Answer 36

LH

Question 37

Which of the following contributes to the maternal portion of the placenta?

Answer 37

basal decidua

Question 38

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

Answer 38

hcg

Question 39

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

Answer 39

amniotic cavity

Question 40

or "footling" breech indicates the fetus has one foot or both feet down (towards the cervix), so it's legs are poised to deliver first.

Answer 40

incomplete

Question 41

__ breech refers to when the buttocks present first (toward the cervix) and both hips and knees are flexed.

Answer 41

complete

Question 42

___refers to when the head is down towards the cervix.

Answer 42

vertex

Question 43

Select the procedure used to obtain a fetal blood sample.

Answer 43

pubs

Question 44

Which procedure allows for sampling of the amniotic fluid?

Answer 44

amniocentesis

Question 45

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

Answer 45

coelocentesis

Question 46

Which of the following is the most common maternal disorder?

Answer 46

diabetes mellitus

Question 47

All of the following are recognized as part of the double decidual sac sign except:

Question 48

A cresent shaped sonolucent collection of blood between the gestational sac and the uterine wall is ___

Answer 48

subchorionic hemorrhage

Question 49

A deficiency of red blood cells is __

Answer 49

anemia

Question 50

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

Answer 50

anembryotic pregnancy

Question 51

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

Answer 51

corpus luteum cyst

Question 52

Which location of ectopic pregnancy would have an increased risk of massive hemorrhage?

Answer 52

abdomen

Question 53

Theca Lutein cysts are usually stimulated by excessive levels of hCG and are related to:

Question 54

The term for having an abnormal number of chromosomes is _____

Answer 54

Aneuploidy

Question 55

The term for an abnormally rapid heart rate is __

Answer 55

tachycardia

Question 56

The spontaneous failure and expulsion of an early pregnancy is _

Answer 56

abortion

Question 57

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

Question 57

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

Answer 57

spontaneous abortion

Question 58

Ectopic pregnancy most often implant in the:

Answer 58

fallopian tube (ampullary)

Question 59

Early onset intrauterine growth restriction is defined as crown rump length at least ______________ standard deviations below the mean for the expected gestational age.

Answer 59

two