Chapter 29 Flashcards

1
Q

What is follicle stimulating hormone (FSH)?

A

Hormone that induces the growth of Graafian follicles

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2
Q

What is monoamniotic?

A

One amnion

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3
Q

What is biometry?

A

Measurement done on an embryo or fetus such as CRL or BPD

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4
Q

What is nonimmune hydrops?

A

Edema, accumulation of fluid in tissues and in the peritoneal cavity, and chest, in a fetus not affected by erythroblastosis fetalis

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5
Q

What is hypervolemic?

A

Increase in circulating blood volume

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6
Q

What is monozygotic?

A

One zygote

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7
Q

What is amnionicity?

A

Determination of number of the fetal membranes called the amnion

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8
Q

What is thermocoagulation?

A

Use of heat to seal tissue

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9
Q

What is gamete intrafallopian transfer (GIFT)?

A

Mixing of the ovum and the sperm within the Fallopian tubes allowing for fertilization within the woman’s body

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10
Q

What is in vitro fertilization?

A

Fertilization of the ovum outside of the uterus

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11
Q

What does anembryonic mean?

A

Lack of an embryo

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12
Q

What is a quadruplet?

A

Four

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13
Q

What is chorionicity?

A

Determination of the number of membranes adjacent to the uterus

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14
Q

What is oligohydramnios?

A

Low amniotic fluid levels

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15
Q

What is dizygotic?

A

Two zygote as a result of the fertilization of two ova or the splitting of one ovum into two

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16
Q

What is a hysterotomy?

A

Surgical incision into the uterus, i.e., cesarian section

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17
Q

What is a zygote?

A

Fertilized ovum with 23 pairs of chromosomes

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18
Q

What is mortality?

A

Death rate due to a specific disease

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19
Q

What is polyhydramnios?

A

Too much fluid

20
Q

What is intracytoplasmic sperm injection (ICSI)?

A

Injection of a sperm into the oocyte

21
Q

What is a large fetus that falls in the 90th percentile for weight?

A

Macrosomic

22
Q

What is plethoric?

23
Q

What is morbidity?

A

Incidence of a disease

24
Q

In the United States, who produces the multiples at the highest rate?

A

African americans

25
Spontaneously occurring monozygotic twinning is noted to be influenced by:
Genetics
26
A large for dates uterus may be a result of?
Macrosomic fetus, uterine fibroids, and multiple gestation pregnancy
27
Decreased Maternal Serum α-fetoprotein (MSAFP) levels can be the result of:
Uterine fibroids during pregnancy
28
What is a risk factor of a multiple pregnancy?
IUGR, TTTs, and low birth weight
29
A monozygotic pregnancy with two placentas and two amnions is labeled:
DC/DA
30
A pregnancy consisting of two amnions, one chorion, and one placenta is:
MC/DA
31
Preeclampsia, hypertension, placental abruption, placenta previa, and postpartum hemorrhage are:
Maternal complications of a multiple gestation pregnancy
32
The risk of an adverse outcome or abnormality with multiples is greatest with:
monochorionic/monoamniotic twins
33
Sonographic determination of chorionicity and amnionicity is most accurate in:
The first trimester
34
11.To determine chorionicity, search for:
The T-sign, the λ-sign, a separating membrane at least 1.5mm thick
35
An intertwin biometric discrepancy of more than 20% suggests:
Likelihood of a single fetal loss
36
Growth restriction in discordant twins is assessed by evaluating:
UA with Doppler, MCA with Doppler, and biometry
37
The rate of spontaneous demise of singleton and single twin demise is approximately:
21%
38
The most common maternal age–related risk for twinning involves:
A higher rate of cesarian section
39
A primary fetal risk factor for mortality and long-term morbidity with multiple gestations is:
Low birth weight
40
An abnormality revealing a normal twin combined with a poorly defined twin possessing an irregular or no cardiac structure is:
TRAP sequence
41
TRAP Sequence is commonly referred to as:
Acardiac twinning
42
A twin pregnancy with a severe imbalance of amniotic fluid between the two gestational sacs is caused by:
TTTS
43
Conjoined twins connecting at the thorax are classified as:
thoracopagus
44
The _________ sign refers to the presence of a triangular projection of placental tissue extending into the base of the junction of two chorionic membranes.
Twin peak sign
45
What type of twins have two of each: chorions, amnions, yolk sacs, and embryos?
Dizygotic twins