BCSE Medicine

Exotic Animal Medicine Basics – BCSE Study Guide

BCSE study guide for Exotic Animal Medicine. High-yield review with exam-focused content and practice questions.
Parameter Value Clinical Significance
Rectal Temperature Less than 99 degrees F 3x greater mortality risk
Blood Glucose Greater than 300 mg/dL Increased risk of GI obstruction
Serum Sodium Less than 129 mEq/L 2.3x greater mortality risk
BUN Greater than 24.7 mg/dL 3x greater mortality risk
Treatment Drug/Approach Dose/Notes
Fluids Crystalloids IV or SC Rehydrate aggressively; IO if severe
Pain Management Meloxicam or Buprenorphine Meloxicam 0.5 mg/kg SC/PO q24h; Buprenorphine 0.01-0.05 mg/kg SC q8-12h
Prokinetics Metoclopramide or Cisapride Metoclopramide 0.2-1.0 mg/kg PO/SC/IV q8-12h; Cisapride 0.5 mg/kg PO q8h
GI Protectants Ranitidine 2-5 mg/kg PO/SC/IV q12-24h; also has prokinetic effects
Nutritional Support Critical Care (Oxbow) Syringe feed q4-6h; nasogastric tube if needed
Heat Support Gradual rewarming Critical for hypothermic patients
Approach Treatment Notes
Medical - First Line Prednisone 0.5-2 mg/kg PO BID Stimulates gluconeogenesis
Medical - Second Line Diazoxide 5-30 mg/kg PO BID Inhibits insulin release; titrate to effect
Surgical Nodulectomy plus partial pancreatectomy Longer disease-free interval (median 668 days) vs medical alone
Emergency Dextrose/honey/corn syrup to gums For acute collapse - temporary measure only
Diet Frequent small meals, high protein Avoid simple sugars; feed ad libitum
Treatment Details
Surgical - Preferred Adrenalectomy of affected gland; left gland removal is straightforward; right gland near vena cava is more challenging
Medical - Deslorelin implant GnRH agonist; licensed for ferrets; average disease-free period 16.5 months; becoming first-line treatment
Medical - Leuprolide GnRH agonist injection; suppresses gonadotropin release; requires repeated injections
Medical - Melatonin May help with hair regrowth but does not stop tumor growth
Treatment Details
Acute - Injectable Vitamin C 50-100 mg/kg SC or IM; for severe cases
Maintenance - Oral Vitamin C 50-100 mg/kg PO daily until recovery; then 10-30 mg/kg/day
Diet Correction Fresh vegetables high in vitamin C: bell peppers (red has most), parsley, kale, broccoli
Pain Management Meloxicam for joint pain; handle gently
Diagnostic Test Notes
Radiography Shows dilated proventriculus; proventriculus-to-keel ratio greater than 0.52 suggests dilation
Barium Contrast Delayed GI transit time; food stasis in proventriculus
PCR - ABV Choanal/cloacal swabs or blood; false negatives possible due to intermittent shedding
Serology ABV-specific antibodies; positive does not confirm PDD will develop
Crop Biopsy Histopathology - only 30-35% sensitive; negative does not exclude disease
Necropsy Definitive diagnosis; sample crop, proventriculus, ventriculus, brain, adrenal
Test Findings
Radiographs Generalized skeletal demineralization, thin cortices, folding fractures, fibrous osteodystrophy
Blood Chemistry Late stages: hypocalcemia, hyperphosphatemia, low ionized calcium
Vitamin D levels Low 25-hydroxycholecalciferol
Severity Treatment Notes
Mild Diet correction plus calcium/D3 supplements Correct UVB lighting; dust insects with calcium
Moderate Oral calcium supplementation plus husbandry correction Calcium glubionate 1 mL/kg PO q12-24h
Severe/Tetanic Calcium gluconate 50-100 mg/kg IV/IM slow Hospitalization; fluid therapy; heat support
All Cases Husbandry correction is ESSENTIAL UVB bulb replacement every 6-12 months
Parameter Rabbit Ferret Guinea Pig Psittacine Reptile
GI Type Hindgut fermenter Simple carnivore Hindgut fermenter Simple GI tract Variable by species
Top Disease #1 GI stasis Insulinoma Vitamin C deficiency PDD MBD
Top Disease #2 Dental disease Adrenal disease Respiratory infection Psittacosis Respiratory infection
Unique Feature Cannot vomit; cecotrophy Obligate carnivore; short GI transit Cannot synthesize Vit C Air sac system Ectothermic; need UVB
Normal Temp 100-102.5 F 100-104 F 99-103 F 104-112 F POTZ dependent
Key Drug Note Sensitive to antibiotics disrupting GI flora Check glucose with prednisone Vitamin C supplements essential Doxycycline for chlamydiosis Temperature affects drug metabolism

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