Chronic weightloss Flashcards
1
Q
Parasites
A
large strongyles
- long (6month) migratory lifecycle
- very pathogenic larval stages
- extremely sensitive to modern athelmintics
small stronglyes
- cyathostomins
- short (8 weeks) migratory lifecycle
- propensity for >2yrs arrested development
Ascarids
- medium (3 month) migratory lifecycle
- migrating stages refractory to anthemintics
- thick shelled egge robust with prolonged survival in soil
Tapeworm
- ileo-caecal junction
- adult stages affected by praziquantal or 2x pyrantel dose
Bots
- not pathogenic
- ivermectin is effective
2
Q
Anthelmintic best practice
A
-targeted, strategic dosing (monthly FWEC)
3
Q
Cyathostominosis
- Cs (3)
- Dx: (3)
- Tx (5)
A
- rapid, marked weightloss (2 weeks)
- preputial/ventral oedema
- poor body condition
Dx:
- +/- neutrophilia
- +/- hypoalbunaemia
- +/- hyperglobinaemia
Tx:
- codeine phosphate
- prednisilone
- fenebdazole
- ivermectin
- moxidectin (lipophilic so increased chance of toxicity in emaciated animals)
4
Q
Lawsonia
-CS (5)
-pathology (4)
-Dx (2)
Tx
A
CS
- rapid weightloss
- diarrhoea
- dulll demeanour
- poor body condition
- submandibular oedeam
pathology
- marked hypoproteinaemia (particularly albumin)
- mild uraemia
- mild lymphocytosis
- thickened intestinal loops on US
Dx
- thickened intestinal loops on US
- faecal PCR +ve for lawsonia intracellularis
Tx: oxytetracyclines
5
Q
Equine Motor Neurone Syndrome
CS (2)
patholgy
Dx
A
CS:
- excessive recumbancy
- poor body condition
Pathology:
-OGAT: decreased absorption
Dx: biopsy of muscle
6
Q
Inflammatory bowel disease
CS (4)
Pathology (2)
Dx
TX
A
CS
- weightloss
- colic episodes
- poor BCS
- intermittent cow pat faeces
Pathology
- hypoalbunaemia
- decreased OGAT
Dx: rectal biopsy: inflammatory infiltrate
Tx: long-term corticosteroids
7
Q
Gastric ulceration
CS (4)
Pathology
Dx
Tx
A
Cs:
- poor body condition
- dental overgrowths
- LHS systolic heart murmur, Grade II
- inspiritory noise at exercise
Pathology: NA
Dx: gastropexy
Tx:
- PPI (omeprazole)
- H2 antagonist (ranitidine/cimetidine)
- mucosal protectant (sucralfate)
8
Q
Oral glucose absorption test (OGAT)
A
- starve horse overnight
- give 1g/kg by stomach tube
- should effectively double
