Oxalate Loading Test for the Diagnosis of Oxalate Hyperabsorption
The initiation of a stone may be the result of excessive excretion of oxalic acid and/or insufficient dilution of the urine. The evidence for the importance of oxalic acid in calcium oxalate stone formation, however, is often contradictory. Our own studies on 24-h urines on the patient’s own diet and on a standard diet have shown that hyperoxaluria is present in some patients and that the circadian rhythm of oxalate excretion in both studies follows a sinusoidal curve.
KeywordsCircadian Rhythm Oxalic Acid Standard Diet Calcium Oxalate Calcium Oxalate Stone
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