Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Women's imaging > Normal Gestation > Flashcards

Normal Gestation Flashcards

1
Q

Tiny cystic structure implanted within the echogenic decidua

A

Intradecidual sign

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Normal sac has an echogenic border greater than ____ mm thick, which represents chorioresidual reaction

A

2mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Normal gestational sac is visualized by transabdominal approach by what week

A

5 weeks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Evident in about 85% of normal pregnancies. It is produced by visualization of 3 layers if decidua in early pregnancy

A

Double decidual sac sign

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Refers to endometrium of pregnant uterus

A

Decidua

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Lines the endometrial cavity

A

Decidua vera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Covers the gestational sac

A

Decidua capsularis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Contributes to the formation of placenta at the site of implantation

A

Decidua basalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Growth rate in mean sac diameter

A

> 1.2 mm/day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

If yolk sac is 2-6 mm in diameter, it is always present when MSD is _____ on transabdominal us

A

> /= to 20

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If yolk sac is 2-6 mm in diameter, it is always present when MSD is _____ on transvaginal US

A

> /= 16 mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where does the embryo develop?

A

Within the amniotic space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Yolk sac can be found in the

A

Chorionic fluid space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Excellent evidence of intrauterine pregnancy

A

Well-visualized double sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A spherical cystic structure that is connected to the midgut of the embryo by a thin stalk, the vitelline duct

A

Yolk sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Normal diameter of yolk sac

A

2-6 mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Remnant of the connection of the vitelline duct to the distal ileum

A

Meckel diverticulum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Earliesr site of blood cell formation in the embyro

A

Yolk sac

19
Q

Yolk sac is generally seen between what GA

A

5-12 weeks

20
Q

Earliest demonstration of embryo is the ______, produced by the amniotic sac and yolk sac with the embryonic disc between them

A

Double bleb sign

21
Q

Develops on the ovary at the site of the dominant follicle from which ovulation occurred

A

Corpus luteum

22
Q

Secretes estrogens, progesterone and other hormones that are essential for establishing and maintaining pregnancy

A

Corpus luteum

23
Q

Trimester of pregnancy wherein it includes cystic appearance if rhombencephalon and herniation of the gut into the base of umbilical cord

A

First

24
Q

At what GA does the hindbrain forms a prominent cystic structure that becomes the normal fourth ventricle

A

6-8 weeks

25
Q

Double bleb sign is formed by the

A

Yolk sac and amniotic sac

26
Q

Cyst with intense ring of vascularity (ring of fire)

A

Corpus luteum

27
Q

At what GA does the midgut herniates into the base of the umbilicus forming a physiologic omphalocele which is 6-9 mm in size

A

9-11 weeks

28
Q

Occurence of vaginal bleeding and uterine cramping with a closed cervical OS

A

Threatened abortion

29
Q

Presents with cervical dilatation and fetal or placental tissues within the cervical os

A

Inevitable abortion

30
Q

Refers to presence of residual products of conception within the uterus

A

Incomplete abortion

31
Q

Fetus has died, but remains in the uterus

A

Missed abortion

32
Q

Defined as 3 or more successive spontaneous abortions

A

Habitual abortion

33
Q

Pregnancy in which the embryo has died and is no longer visible or never developed

A

Anembryonic pregnancy or blighted ovum

34
Q

A gestational sac is considered to be abnormal if it demonstrates the following

A 
Large size without an embryo or yolk sac
Distorted shape
Irregular contour
Thin or weak choriorecidual reaction
Absence of double decidual sac 
Abnormal position
35
Q

Strong evidence of abnormal sac development

A

Gestational sac of less than 1 mm/d MSD

36
Q

Cardiac activity should be detected at what embryo size

A

More than 5mm

37
Q

Major cause of pregnancy related maternal deaths

A

Ectopic pregnancy

38
Q

Most common site of ectopic pregnancy

A

Isthmus

39
Q

Concurrent intrauterine and extrauterine pregnancies

A

Heterotopic pregnancy

40
Q

US finding in ectopic pregnancy that include demonstration of an extrauterine gestational sac appearing as a fluid-containing structure with an echogenic ring

A

Tubal ring sign

41
Q

Common finding in the bleeding pregnant patient before 20 weeks GA. Believed to develop because of venous bleeding from separation of margin of placent

A

Subchorionic hemorrhage

42
Q

Subchorionic hemorrhage is commonly seen beneath the

A

Chorion

43
Q

Polypoid or pedunculated mass of retained placental tissues has been termed

A

Placental polyp

44
Q

Echogenic mass within the uterine cavity following a spontaneous or induced abortion

A

Retained products of conception

Women's imaging (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions