Renal tubular acidosis (RTA) is a disease that occurs when the kidneys fail to excrete acids into the urine, which causes a person's blood to remain too acidic.

  1. The symptoms of RTA depend upon the type.
  2. Type 1 causes mild dehydration, fragile bones/bone pain, kidney stones, and kidney failure. Blood potassium levels are low, which causes symptoms ranging from muscle weakness to paralysis.
  3. Type 2 RTA also causes mild dehydration and low blood potassium levels.
  4. Type 4, blood potassium levels are high. There are no symptoms until potassium levels become dangerously high, which causes muscle paralysis and irregular heartbeat (arrhythmia).
  5. Children with RTA often experience slow growth, show signs of anorexia, and have symptoms such as vomiting, constipation, and soft bones (rickets).