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Kidney Disorders

This category comprises disorders of the kidneys that involve damage to their tissue and/or impairment of their function to remove waste from blood, regulate minerals, regulate acid-base balance, secrete hormones to regulate blood pressure and blood cell production, balance water in the body, produce active vitamin D, and produce urine due to malnutrition, autoimmune mechanisms, or systemic disease.

Kidney Stones (Renal Calculi)

What Are Kidney Stones? Kidney stones, also called renal calculi, are abnormal hard formations in the kidneys that are composed mainly of calcium oxalate, also uric acid, and cystine. Q: How big are kidney stones? A: Stones can vary in ...

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IgA Nephropathy

What Is IgA Nephropathy? IgA nephropathy, also called Berger’s disease, is a primary renal disease that results when immunoglobulin A (IgA) forms deposits in the glomeruli, where it creates inflammation. IgA nephropathy is characterized by recurrent hematuria (blood in urine), mild proteinuria ...

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Hypocalciuria (Low Urine Calcium)

What Is Hypocalciuria? Hypocalciuria is the term for an abnormally low level of calcium in the urine. This laboratory finding indicates low urinary excretion of calcium by the kidneys, which is an early renal compensatory mechanism or attempt to conserve ...

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