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Table 1 Acid loading test

From: Medullary nephrocalcinosis, distal renal tubular acidosis and polycythaemia in a patient with nephrotic syndrome

 

09.30 hrs (immediately prior to acid loading)

At 15.30 hrs

Urine pH

6.91

6.86

Arterial PH

7.42

7.29

PCO2

34

21

HCO3

22

10.1

  1. Results demonstrate the failure of urine to acidify in the presence of systemic acidosis. Suggestive of distal renal tubular acidosis.