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  • With Mayo Clinic emeritus internist

    Carl F. Anderson, M.D.

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Question

Lupus: How does it affect the kidneys?

How does lupus affect my kidneys?

Answer

from Carl F. Anderson, M.D.

About half the people who have systemic lupus erythematosus develop some form of kidney inflammation, called lupus nephritis. This inflammation can lead to kidney failure, but the course of the lupus and the pattern of its effects on the kidneys is quite variable and hard to predict.

Initially, lupus nephritis may cause no signs or symptoms. But if inflammation is widespread and persistent, it leads to impaired kidney function, indicated by:

  • Increased protein in the urine
  • Elevated creatinine in the blood
  • High blood pressure
  • Swelling (edema) of the feet and lower legs

If you're diagnosed with lupus, your doctor will likely recommend tests to evaluate your kidney function. If a problem is detected, your doctor may recommend a kidney biopsy — to help determine the severity of the kidney disease and appropriate treatment.

Next question
Lupus: Can it cause hair loss?
References
  1. Rose BD, et al. Types of renal disease in systemic lupus erythematosus. http://www.uptodate.com/index. Accessed Feb. 24, 2012.
  2. Ferri FF. Ferri's Clinical Advisor 2012: 5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2012. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-323-05611-3..C2009-0-38601-8--TOP&isbn=978-0-323-05611-3&uniqId=291436269-101. Accessed Feb. 24, 2012.
  3. Anderson CA (expert opinion). Mayo Clinic, Rochester, Minn. March 1, 2012.
AN01267 April 26, 2012

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