Causes of the abortion in the horse

Question 1

What is the most common cause of abortion in the horse?

Answer 1

Placentitis

Question 2

Bacteria gram-positive that causes placentitis?

Answer 2

Streptococcal species

Question 3

Bacteria gram-negative that causes placentitis?

Answer 3

Escherichia coli

Question 4

The most commonly incriminated viral causes of abortion in horses

Answer 4

Equine herpes virus type 1 (EHV-1)

Question 5

Vaccine for EHV-1 is applied in mares at these months of gestation

Answer 5

5,7 y 9 months of gestation

Question 6

The most common cause of noninfectious abortion in horses

Answer 6

Twin fetuses

Question 7

The bacteria are introduced to the uteroplacental unit vía

Answer 7

Ascending

Question 8

Bacteria such as these can cause placentitis

Answer 8

Streptococcus zooepidermicus
Escherichia coli
Pseudomonas aureginosa
Klebsiella

Question 9

This fungal infection can cause placentitis

Answer 9

Aspergillus

Question 10

Treatment for placentitis

Answer 10

Antimicrobial therapy
Flunixin Meglumine
Progesterone to promote quiescence
Clenbuterol to suppress uterine motility
Pentoxifylline decreases inflammatory mediators and increases uterine blood flow

Question 11

Examination of an aborted fetus infected with EHV-1 may reveal

Answer 11

Necrotic foci on the liver
Necrotizing bronchiolitis
Intranuclear inclusion bodies

Question 12

Diagnosis for viral abortion in horses is with

Answer 12

Virus neutralization test
Indirect immunofluorescence
PCR
Virus isolation

Question 13

Treatment for EHV infections

Answer 13

There is no direct treatment, although antiviral medications such as acyclovir and valacyclovir may theoretically be of benefit

Question 14

Tipo de placenta de las yeguas

Answer 14

Corioalantoidea