renal tubular acidosis hyperkalemic renal tubular acidosis MONDO:0100161 Renal tubular acidosis (RTA) that is caused by a generalized transport abnormality of the distal tubule. The transport of electrolytes such as sodium, chloride, and potassium that normally occurs in the distal tubule is impaired. This form is distinguished from classical distal RTA and proximal RTA because it results in high levels of potassium in the blood instead of low levels. http://orcid.org/0000-0001-5208-3432 hyperkalemic RTA type 4 RTA type 4 renal tubular acidosis