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ARDMS- OB/GYN Exam Prep > Measurements > Flashcards

Flashcards in Measurements Deck (48)
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1
Q

What are the dimensions used to measure the uterus?

A

L x W x AP

2
Q

Uterine size: Nulliparous

A

8cm x 5cm x 3cm

3
Q

Uterine size: Parous

A

8-10cm x 5-6cm x 5-6cm

4
Q

Uterine size: Multiparous

A

Increase approximately 1-2cm in length

5
Q

Uterine size: Premenarchael

A

1-3cm x 0.5-1cm

6
Q

Uterine size: Postmenopausal

A

3.5-5.5cm x 2-3cm

7
Q

Uterine/Cervix Dimensions: Prepubertal

A

2/3 cervix, 1/3 uterine body

8
Q

Uterine/Cervix Dimensions: Pubertal

A

1/2 cervix, 1/2 uterine body

9
Q

Uterine/Cervix Dimensions: Post-pubertal

A

1/3 cervix, 2/3 uterine body

10
Q

Uterine/Cervix Dimensions: Post-menopausal

A

1/2 cervix, 1/2 uterine body

11
Q

Vaginal length

A

8-10cm

12
Q

Fallopian tube length

A

10-12cm

13
Q

Fallopian tube diameter

A

1-4mm

14
Q

Ovarian size

A

3 x 2 x 2cm

15
Q

Post-menopausal ovarian size

A

1-2cm

16
Q

Graafian follicle

A

2cm

17
Q

At what size is a follicle considered a cyst?

A

3cm

18
Q

Dominant follicle

A

2cm or <

19
Q

Endometrium during secretory phase

A

7-14mm

20
Q

Length of cervix

A

2.5cm

21
Q

Length of isthmus of the uterus

A

1cm

22
Q

Length of the interstitial portion of Fallopian tube

A

1cm

23
Q

Length of the isthmus portion of Fallopian tube

A

3cm

24
Q

Length of the ampulla portion of Fallopian tube

A

5cm

25
Q

Depth that the basal layer can extend into the myometrium

A

2.5mm

26
Q

Follicular cyst

A

3-8cm

27
Q

Ovarian Volume Dimensions

A

L x W x H x 0.5233

28
Q

Malignant tumor resistive index

A

<0.4

29
Q

Malignant tumor pulsatility index

A

<1.0

30
Q

Mean Sac Diameter

A

L x W x H / 3

31
Q

Cephalic Index

A

BPD/OFD x 100

32
Q

Cephalic index for dolichocephalic

A

Less than 75

33
Q

Cephalic Index for brachiocephalic

A

More than 85

34
Q

Normal lateral ventricle

A

10mm or <

35
Q

Ventriculomegaly

A

> 10mm

36
Q

Normal Cisterna Magna

A

2mm-10mm

37
Q

Abnormal Nuchal Fold

A

6mm or >

38
Q

Placenta weight

A

450-550g

39
Q

Placenta diameter

A

16-20cm

40
Q

Ovarian volume

A

6-13cc

41
Q

Placental thinning AP

A

<1.5cm

42
Q

Placental thickening AP

A

> 4cm

43
Q

Compressed cervix AP in pregnancy

A

2cm or <

44
Q

Yolk sac inner diameter

A

<6mm

45
Q

Sample size for MCA

A

1-2mm

46
Q

Polyhydoramnios fluid index

A

> 20cm

47
Q

Post partum hemorrhage (vaginal delivery)

A

> 500ml

48
Q

Post partum hemorrhage (c-section)

A

> 1000ml