Acute Kidney Injury in Cats: A Veterinary Emergency
Acute kidney injury (AKI) is a sudden loss of kidney function — often caused by toxins, infections, or dehydration. Unlike chronic kidney disease, AKI can sometimes be reversed with prompt treatment.
急性肾损伤 (AKI) 是指肾功能突然严重下降，持续数小时至数天。与逐渐发展的慢性肾脏病 (CKD) 不同，AKI 突然发作，如果不立即治疗可能会致命。常见原因包括摄入毒素（百合、防冻剂）、尿路阻塞、严重脱水和感染。通过积极的早期治疗，一些猫可以完全恢复肾功能，但时间至关重要。
要点
- AKI is a sudden loss of kidney function — different from chronic kidney disease
- Lily ingestion is the #1 preventable cause of AKI in cats — even tiny amounts are fatal
- Antifreeze (ethylene glycol) is another major cause — sweet taste attracts cats
- Symptoms: sudden stop in urination, vomiting, lethargy, loss of appetite
- Early aggressive treatment with IV fluids can sometimes reverse the damage
- Prevention: keep lilies and antifreeze away from cats at all times
Common Causes
Toxins: lily plants (all parts — petals, leaves, pollen, water in vase), antifreeze (ethylene glycol), certain medications (NSAIDs like ibuprofen). Urinary blockage: especially in male cats — stones or crystals block the urethra. Dehydration: severe vomiting/diarrhea without fluid replacement. Infections: pyelonephritis (kidney infection). Low blood pressure: during anesthesia or from heart failure.
Symptoms
Sudden increase or decrease in urination. Vomiting (often the first sign). Lethargy and loss of appetite. Excessive thirst followed by no urination. Bad breath (uremic breath — ammonia-like smell). Dehydration — skin tenting, dry gums. In severe cases: seizures, collapse, coma. Note: a cat that STOPS urinating entirely may have a blockage — this is a separate emergency requiring immediate catheterization.
Emergency Treatment
Treatment is aggressive and time-critical: IV fluid therapy (the cornerstone — flushes toxins and supports kidney function). Anti-nausea medications. Gastric protectants. Monitoring urine output. Blood work every 12-24 hours to track kidney values. For antifreeze poisoning: fomepizole (antidote) must be given within 8 hours. For lily poisoning: IV fluids must start within 6 hours of ingestion for the best chance of survival.
Prognosis and Recovery
Prognosis depends on the cause and how quickly treatment begins. Lily ingestion: fatal without treatment within 3-7 days. With treatment within 6 hours, survival rates are good. Antifreeze: fatal without antidote within 24-48 hours. With early fomepizole treatment, survival is possible. Urinary blockage: excellent prognosis if unblocked within 24-48 hours. Some cats develop permanent CKD after AKI — regular monitoring is essential during recovery.
何时立即去看兽医
- Your cat has chewed or ingested any part of a lily plant — EMERGENCY, go immediately
- Your cat has suddenly stopped urinating or is straining with no output
- Your cat is vomiting repeatedly and appears lethargic
- Your cat has been exposed to antifreeze or any chemical
- Your cat's breath smells like ammonia
- Your cat has gone from drinking a lot to drinking nothing with no urination
RVC 如何提供帮助
皇家兽医中心提供 24/7 紧急肾脏护理，包括静脉输液治疗、血液工作监测、导尿管堵塞以及急性肾损伤的重症监护。如果怀疑百合或防冻剂中毒，请立即致电——早期治疗可以挽救生命。我们拥有处理最危急的肾脏紧急情况的设备和专业知识。请致电 +853 6677 6611。
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