Lab 8: Case Studies (Risco)

Question 1

most common tumor in uterus

Answer 1

lymphosarcoma (not a primary tumor)

Question 2

causes of persistent CL**

Answer 2

pregnancy
pyometra
mummy
uterus unicornus

Question 3

receptors for oxytocin upregulated by:

Answer 3

estrogen (so no longer effective after 4d post partum)

Question 4

what type of hormones cause uterine contraction?

Answer 4

ecbolic hormones

Question 5

2 types of fetal dropsy. which more common?

Answer 5

hydroallantois (less common) - causes “apple shape”

hydroamnii - causes “pear shape”

Question 6

vitamin E and selenium deficiency can –>

Answer 6

hydroallantois

Question 7

hydroallantois tx options

Answer 7

• leave alone until parturition, then monitor at that time (risk: can tear pubic tendon if gets too heavy)
• induce parturition with corticosteroids and prostaglandin (70% give birth w/n 36 hrs)

Question 8

how does fetal cortisol release –> parturition?

Answer 8

stops placenta from producing progesterone

Question 9

cervico-vaginal prolapse usually occurs pre or post partum?

Answer 9

pre-partum, due to high estrogen relaxing the vagina

Question 10

what can cause uterine prolapse?

Answer 10

large calf, hypocalcemia, etc.

Question 11

1 rule-out for colicky pregnant alpaca

Answer 11

uterine torsion

others: abscess, impaction, etc.

Question 12

alpaca gestation

Answer 12

335-360d or longer

Question 13

are alpacas CL dependent to term?

Answer 13

Yes

Question 14

which horn do alpacas usually have preg. in?

Answer 14

Left (99%)

Question 15

How to dx uterine torsion

Answer 15

vaginoscopy: only views torsion caudal to uterus
transrectal palp
Try to both!

Question 16

which side lay animal on for R torsion?

Answer 16

R. then roll up and over while stabilizing fetus by hand

-sedation/general anesthesia may be needed

Question 17

when does uterine torsion in cow usually occur?

Answer 17

late gestation, causes dystocia

Question 18

when does uterine torsion in horse usually occur?

Answer 18

late gestation, sometimes at term

Question 19

when does uterine torsion in alpaca usually occur?

Answer 19

mid to late gestation, sometimes at term

Question 20

epidermal membrane

Answer 20

extra membrane in camelids

-joins at mucocutaneous junctions