Obstetrics Normal Values Flashcards by Beri Austria

Q

Amniotic fluid index

A

5 to 20 cm

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Q

Placental thickness

A

1 to 4 cm

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Q

3rd ventricle width

A

< 3.5 mm

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Q

Atrial part of the ventricle

A

Do not normally exceed 10 mm

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Q

Normal cisternal magna width

A

2 to 11 mm width

< 2 = Chiari malformation

> 11 = Dandy walker malformation spectrum

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Q

Small bowel diameter

A

Less than 6 mm in diameter

Less than 14 mm in length

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Q

Colon

A

does not exceed 23 mm in diameter

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