Which laboratory pattern is most consistent with postrenal azotaemia in a dog?
Correct answer: D. Increased urea with urinary obstruction
- A. Normal urea with reduced filtration
- B. Increased urea with severe dehydration
- C. Increased urea with renal failure
- D. Increased urea with urinary obstruction
Explanation
Postrenal azotaemia occurs when urine outflow is obstructed or urine leaks into body tissues, causing urea and creatinine to accumulate. Dehydration causes prerenal azotaemia, while intrinsic renal damage causes renal azotaemia.
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Covers the recognition, diagnosis, prevention and medical treatment of diseases affecting domestic animals, including infectious, metabolic, nutritional, toxic and organ-system disorders. It links history taking, physical examination, clinical signs, laboratory findings and differential diagnosis with appropriate therapy and herd or flock control.
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