A 52-year-old man with recent cardiac catheterization for acute coronary syndrome develops acute kidney injury the next morning. His creatinine rises from 1.0 to 2.8 mg/dL in 24 hours. Urinalysis shows fine granular casts and muddy brown appearance. He has no fever or rash. Which of the following is the most likely diagnosis?
- A)Contrast-induced acute tubular necrosisGABARITO
- B)Acute interstitial nephritis
- C)Sepsis from catheterization
- D)Cholesterol embolization syndrome
- E)Prerenal acute kidney injury
Explicação
Contrast-induced nephropathy (now termed contrast-associated AKI) causes ATN through direct toxicity and renal vasoconstriction. Peak creatinine elevation occurs 3-5 days post-contrast but can be rapid (within 24 hours). Muddy brown casts and granular casts ar... Ver explicação completa e trilha adaptativa →