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RUSVM Therio Practice Questions > Exam 1: Bovine Pregnancy Diagnosis > Flashcards

Exam 1: Bovine Pregnancy Diagnosis Flashcards

1
Q

What is the main reason to pregnancy check cows?

A

To ID open cows

for economic purposes

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2
Q

Transrectal palpation is used from

______ days of gestation to term

A

30

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3
Q

The direct method of retraction of the uterus is called

A

Hooking (the ventral intercornual ligament)

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4
Q

Indirect methods of uterus retraction include

A

Grasping the cranial edge of the broad ligament

or the

Sweeper method

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5
Q

What are the 4 cardinal signs of pregnancy?

A

Fetal membrane slip

Amniotic vesicle

Placentomes

Fetus

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6
Q

This is the earliest cardinal sign of pregnancy

A

Fetal membrane slip

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7
Q

Fetal membrane slip is palpable from ____ -____ days

A

30 - 90 days

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8
Q

The amniotic vesicle (a turgid vesicle)

is felt in the pregnant horn and is

first palpable at _____ days

but difficult to palpate at ______ days

A

first palpable- ~32 days

difficult after ~55 days

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9
Q

You can use the diameter of the amniotic vesicle to

gauge ___________

A

gestational age

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10
Q

maternal caruncle + fetal cotyledon = _______

A

placentome

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11
Q

Placentomes are first palpable around ______ days

A

80

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12
Q

There are about ________ placentomes

arranged in 4 rows

A

120

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13
Q

You can use the size of a placentome to gauge gestational age.

If you feel DIME sized placentomes, how many days is the cow?

A

90 days

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14
Q

You can use the size of a placentome to gauge gestational age.

If you feel NICKEL sized placentomes, how many days is the cow?

A

120 days

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15
Q

You can use the size of a placentome to gauge gestational age.

If you feel QUARTER sized placentomes,

how many days is the cow?

A

150 days

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16
Q

Always feel at least ______ placentomes before coming

to a conclusion about gestational age

A

3

17
Q

The fetus is first palpable at ________ of gestation

A

55 - 65 days

18
Q

Descent of the fetus begins at ______ days

A

70 days

19
Q

Descent of the fetus is complete at _____ days

A

150

20
Q

Ascent of the fetus begins at ______ days

A

210

21
Q

Ascent of the fetus is complete at ______ days

A

240

22
Q

A mouse-sized fetus is ______ days old

A

60 days

23
Q

A cat-sized fetus is _____ days old

A

120

24
Q

At _____ months old, the fetus is the size of a doberman

A

7 months (210 days)

25
Q

What are the 5 SUPPORTIVE signs of pregnancy?

A

Asymmetry of uterine horns

Thinning and increased tone of uterine wall

Fixation of cervix

Presence of CL

Fremitus of the middle uterine artery

26
Q

What does the presence of a CL tell you?

A

That the cow has ovulated and there is a CL present.

If she is pregnant, the ovary with the CL will be on the same side

as the pregnant horn.

27
Q

What does fremitus of the middle uterine artery indicate?

A

increased blood flow to the uterus

28
Q

The middle uterine artery is moveable and

found in the ______ ligament

A

broad

29
Q

T/F:

You can age gestation using fremitus of the middle uterine artery

A

TRUE!

Use the diameter!

30
Q

If the middle uterine artery is 9mm in diameter

and you only feel fremitus on one side,

how old is the fetus?

A

5 months

31
Q

If the middle uterine artery is 12mm in diameter

and you feel fremitus on both sides, but one is larger,

how old is the fetus?

A

6 months

32
Q

If the middle uterine artery is 12mm in diameter

and you feel fremitus on both sides equally

how old is the fetus?

A

7 months

33
Q

Estimating the age of the fetus is most accurate

during the ________ half of gestation

A

FIRST half!

34
Q

When palpating, one risk is an

aggressive membrane slip

which may terminate the pregnancy via _______ release

A

PGF2a

35
Q

Ultrasound can confirm pregnancy as early as ____days

A

24

36
Q

You can determine fetal gender

with ultrasound at

____-____ days

A

55 - 80 days

37
Q

Bovine pregnancy specific protein B

is secreted by trophoblastic cells

and is detectable by ________ days after breeding

(BioPRYN)

A

30

38
Q

This test tests blood or milk for the ABSENCE of P4 to

ID open cows, even though it

can detect pregnancy 20 to 24d post-breeding.

It’s not useful for pregnancy dx due to many false results.

A

Progesterone

39
Q

This test tests milk or blood for

a product of the placenta, and is only used to detect pregnancy

in cows (that cannot be palpated) after 100 days

A

Estrone sulfate

RUSVM Therio Practice Questions (21 decks)

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