A 16-month-old neutered male domestic shorthair cat was presented for a 3-day history of poor appetite. The kitten had been found as a stray ≈2 months before presentation; physical examination at that time revealed a BCS of 3/5 and pale pink mucous membranes.
Current CBC showed a hematocrit of 14.89% (reference interval, 24%-45%), WBC concentration of 5.56 × 103/µL (reference interval, 5.5-19.5 × 103/µL), and platelet concentration of 20 × 103/µL (reference interval, 300-800 × 103/µL). Treatment with doxycycline (15 mg/kg PO q12h), prednisolone (2.5 mg PO q24h), and fenbendazole (50 mg/kg PO q24h for 3 days) was initiated. The patient’s appetite did not improve. After he continued to lose weight over the subsequent 2 weeks, he was referred to a specialty hospital. On presentation, he was quiet, alert, and responsive. BCS was 2/9. Pale pink mucous membranes, increased respiratory rate and effort with increased bronchovesicular sounds, and clear ocular discharge were noted on physical examination. Rectal temperature was 102˚F (39˚C).