Horse GI Lecture 3

Question 1

Which do you typically see diarrhea in, FOALs or ADULTs?

Answer 1

ADULTS

Question 2

Which gut most often implicated in horse diarrhea?

Answer 2

CECUM and COLON

Question 3

What does the large colon do?

Answer 3

STORE Electrolytes and Water; ABSORB electrolytes and water

Question 4

What is clin path of diarrhea in horses?

Answer 4

Dehydration
Acidemia (bicarb loss)
Hyponatremia, Hypokalemia (E+ loss)
TP and Alb dec.

Question 5

Infectious causes of diarrhea in horses?

Answer 5

Salmonella, Clostridial, PHF, Corona, Endoparasites

Question 6

Toxic causes of diarrhea in horses?

Answer 6

NSAIDs, abx induced, Cantharadin

Question 7

4 forms of Salmonellosis

Answer 7

1. Subclinical
2. Acute Diarrhea/endotoxemia
3. Sudden Death
4. Septicemic Foal

Question 8

What makes you think of subclinical disease?

Answer 8

Foal got mildly sick then better. Later on, horses on the farm getting diarrhea/endotoxemia and the other forms.

Question 9

Clinical signs of acute diarrheal salmonellosis?

Answer 9

TOXIC Line on MM
CBC: Neutropenia and Left Shift
Endotoxic Shock: Cold Extremeties**
Fibronecrotic typhlitis (rectal palpation)

Question 10

How do you DX Salmonella?

Answer 10

Fecal Culture and PCR. PCR is better. Want more than one sample.

Culture is not that reliable, must be done 5x and still not considered neg. if nothing grows.

Question 11

How do you TX acute diarrhea?

Answer 11

Fluids, Electrolytes, Abx, Endotox and Laminitis Therapy