Analgesic nephropathy
Alternative Names
Phenacetin nephritis; Nephropathy - analgesicSymptoms
- Weakness
- Fatigue
- Increased urinary frequency or urgency
- Blood in the urine
- Flank pain or back pain, renal colic (occasional)
- Decreased urine output
- Decreased alertness
- Decreased sensation, numbness (especially of extremities)
- Nausea, vomiting
- Easy bruising or bleeding
- Swelling, generalized
Exams and Tests
A physical examination may show signs of interstitial nephritis or kidney failure.
Blood pressure may be high. The doctor may hear abnormal heart or lung sounds when listening to the chest with a stethoscope. There may be signs of premature skin aging.
Lab tests may show blood and pus in the urine, with or without signs of infection. There may be mild or no loss of protein in the urine.
Tests that may be done include:
- Complete blood count
- Examination of sediment or tissue passed in the urine
- Intravenous pyelogram (IVP)
- Toxicology screen
- Urinalysis
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