Page 942 - Small Animal Clinical Nutrition 5th Edition

974 Small Animal Clinical Nutrition

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Figure 2. Radiographic image obtained two weeks after beginning Figure 3. Radiographic image obtained four weeks after initiation of
nutritional management for struvite urolithiasis. Radiopaque uroliths dissolution therapy reveals no evidence of uroliths. The struvite dis-
have decreased in size. solution food should be continued for an additional four weeks to
ensure that small uroliths (below the level of radiographic detection)
are dissolved.

Bibliography
Houston DM, Rinkardt NE, Hilton J. Evaluation of the efficacy of a commercial diet in the dissolution of feline struvite bladder
uroliths. Veterinary Therapeutics 2004; 5: 187-201.
Lulich JP, Osborne CA, Polzin DJ, et al. Incomplete removal of canine and feline urocystoliths by cystotomy (abstract). Journal of
Veterinary Internal Medicine 1993; 7: 124.
Osborne CA, Lulich JP, Kruger JM, et al. Medical dissolution of feline struvite urocystoliths. Journal of the American Veterinary
Medical Association 1990; 196: 1053-1063.

CASE 46-4

Inappropriate Urination in a Cat
S. Dru Forrester, DVM, MS, Dipl. ACVIM (Small Animal Internal Medicine)
Scientific Affairs
Hill’s Pet Nutrition, Inc.
Topeka, Kansas, USA

Patient Assessment
A four-year-old, spayed female domestic shorthair cat was presented for evaluation of inappropriate urination that occurred inter-
mittently over the past four to six months. The owner reported that the cat urinates in the litter box but also in various locations
throughout the home (e.g., bathtub, laundry basket). For the past three days the owner also noted increased frequency of urination
and the urine appeared pink.The cat lives indoors with two other cats that are healthy. Physical examination revealed a body weight
of 5.5 kg and body condition score of 4/5.
Initial evaluation included a urinalysis and diagnostic imaging. Analysis of urine collected by cystocentesis revealed a red/hazy
appearance with a specific gravity of 1.052. Dipstick analysis revealed a urinary pH of 6.0, 2+ protein and 3+ occult blood. There
were numerous red cells and three to five white cells/hpf noted during urine sediment examination. Aerobic urine culture was neg-
ative for bacterial growth. Results of abdominal ultrasound and radiographs were normal. Based on all findings, feline idiopathic
cystitis (FIC) was considered most likely.