What is the appearance of type 2 renal tubular acidosis (RTA)?

Updated: Oct 10, 2018
  • Author: Christie P Thomas, MBBS, FRCP, FASN, FAHA; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Type 2 RTA can be found as a solitary proximal tubular defect, in which reabsorption of HCO3- is the only abnormality (rare) such as with homozygous mutations in SLC4A4. More commonly, it is part of a more generalized defect of the proximal tubule characterized by glucosuria, aminoaciduria, and phosphaturia, also called Fanconi syndrome.


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