Acute Interstitial Nephritis


Acute interstitial nephritis is a kidney disorder. The kidneys are unable to filter waste and fluid properly because of inflammation.
Anatomy of the Kidney
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Acute interstitial nephritis can be caused by:

Risk Factors

Factors that may increase your chance of acute interstitial nephritis include:
  • Drug or medication use (adults)
  • Infection (children)


Acute interstitial nephritis may cause:
  • Decrease in urine output
  • Blood in urine
  • Side or loin pain
  • Swelling of the body
  • Nausea and vomiting
  • Loss of appetite
  • Weakness
  • Aching joints
  • Fever
  • Rash


Your doctor will ask about your symptoms and medical history. A physical exam will be done. Tests may include:
  • Blood Tests
  • Urine tests
  • Kidney ultrasound
  • Kidney biopsy—may be done before certain medications are prescribed for treatment

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