Page 2790 - Cote clinical veterinary advisor dogs and cats 4th

Uroliths, Oxalate 1455

Uroliths, Oxalate
VetBooks.ir (radiopaque urolith in acidic urine)

Likely oxalate urolithiasis

Check serum calcium and address
abnormalities if present

Lower urinary signs?
No
Yes
Mechanical removal (bladder, urethra)

Oxalate confirmed by
quantitative analysis?
No

Choose therapy based Yes
on urolith composition
Institute preventative measures:
1. Promote water consumption; canned diet ideal
2. Restrict dietary oxalate, sodium, protein (e.g.,
Prescription Diet u/d, Canine Urinary SO, UR Urinary
Ox/St dogs]; or Prescription Diet c/d Multicare feline,
Feline Urinary SO, UR Urinary St/Ox Feline) [cats])

Urinalysis

Yes to all of
Abdominal radiographs the 3 bullet points • pH 6.5-7.0
q 3-6 months • Specific gravity 1.020
• Oxalate crystals absent
Uroliths identified? No to any of
the 3 bullet points

Yes No Consider:
1. Dietary compliance
After 1 year, repeat 2. Potassium citrate
radiographs q 6-12 months 3. Hydrochlorothiazide

AUTHOR & EDITOR: Leah A. Cohn, DVM, PhD, DACVIM
Clinical Algorithms

www.ExpertConsult.com