Measurements Flashcards by Erika Lomeli

Q

What are the dimensions used to measure the uterus?

A

L x W x AP

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Q

Uterine size: Nulliparous

A

8cm x 5cm x 3cm

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Q

Uterine size: Parous

A

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

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Q

Uterine size: Multiparous

A

Increase approximately 1-2cm in length

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Q

Uterine size: Premenarchael

A

1-3cm x 0.5-1cm

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Q

Uterine size: Postmenopausal

A

3.5-5.5cm x 2-3cm

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Q

Uterine/Cervix Dimensions: Prepubertal

A

2/3 cervix, 1/3 uterine body

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Q

Uterine/Cervix Dimensions: Pubertal

A

1/2 cervix, 1/2 uterine body

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Q

Uterine/Cervix Dimensions: Post-pubertal

A

1/3 cervix, 2/3 uterine body

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Q

Uterine/Cervix Dimensions: Post-menopausal

A

1/2 cervix, 1/2 uterine body

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Q

Vaginal length

A

8-10cm

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Q

Fallopian tube length

A

10-12cm

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Q

Fallopian tube diameter

A

1-4mm

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Q

Ovarian size

A

3 x 2 x 2cm

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Q

Post-menopausal ovarian size

A

1-2cm

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Q

Graafian follicle

A

2cm

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Q

At what size is a follicle considered a cyst?

A

3cm

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Q

Dominant follicle

A

2cm or <

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Q

Endometrium during secretory phase

A

7-14mm

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Q

Length of cervix

A

2.5cm

Q

Length of isthmus of the uterus

A

1cm

Q

Length of the interstitial portion of Fallopian tube

A

1cm

Q

Length of the isthmus portion of Fallopian tube

A

3cm

Q

Length of the ampulla portion of Fallopian tube

A

5cm

Q

Depth that the basal layer can extend into the myometrium

A

2.5mm

Q

Follicular cyst

A

3-8cm

Q

Ovarian Volume Dimensions

A

L x W x H x 0.5233

Q

Malignant tumor resistive index

A

<0.4

Q

Malignant tumor pulsatility index

A

<1.0

Q

Mean Sac Diameter

A

L x W x H / 3

Q

Cephalic Index

A

BPD/OFD x 100

Q

Cephalic index for dolichocephalic

A

Less than 75

Q

Cephalic Index for brachiocephalic

A

More than 85

Q

Normal lateral ventricle

A

10mm or <

Q

Ventriculomegaly

A

> 10mm

Q

Normal Cisterna Magna

A

2mm-10mm

Q

Abnormal Nuchal Fold

A

6mm or >

Q

Placenta weight

A

450-550g

Q

Placenta diameter

A

16-20cm

Q

Ovarian volume

A

6-13cc

Q

Placental thinning AP

A

<1.5cm

Q

Placental thickening AP

A

> 4cm

Q

Compressed cervix AP in pregnancy

A

2cm or <

Q

Yolk sac inner diameter

A

<6mm

Q

Sample size for MCA

A

1-2mm

Q

Polyhydoramnios fluid index

A

> 20cm

Q

Post partum hemorrhage (vaginal delivery)

A

> 500ml

Q

Post partum hemorrhage (c-section)

A

> 1000ml