Archive Case #42: Feline Diabetes Mellitus

Clinical Clues

1. A middle-aged cat has been drinking more, urinating larger volumes, and steadily losing weight over the last month.
2. Despite this, the owner says the appetite has remained unusually strong.
3. The hair coat looks unkempt and the cat is mildly dehydrated on examination.
4. A urine sample is positive for glucose.
5. Blood testing confirms persistent hyperglycaemia without marked ketonaemia.
6. Insufficient insulin effect in cats commonly leads to polyuria, polydipsia, weight loss, and glucosuria.

Diagnosis

Feline Diabetes Mellitus

This case is most consistent with Feline Diabetes Mellitus because the cat has PU/PD, weight loss despite a good appetite, glucosuria, and persistent hyperglycaemia. The most important clues are the metabolic pattern and urine findings, which make simple renal disease less likely.

Educational Use

Vetdle archive cases are educational veterinary games for diagnostic reasoning practice. They do not provide veterinary advice, diagnosis, treatment, or professional medical guidance.