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. 2017 Aug 24;3(3):98–105. doi: 10.1159/000478781

Table 1.

Clinical tests to diagnose renal acid-base disorders

Challenge Measure Positive × dRTA Ref.
NaHCO3 (U-B) pCO2 <20 mm Hg 15
NH4Cl urinary pH >5.3 16
Furosemide/fludrocortisone urinary pH >5.3 17

dRTA, distal renal tubular acidosis; U-B, urine to blood.