Cystine capacity is an assay for assessing urinary cystine saturation and risk of a stone episode in patients with cystinuria. Lowering the threshold for this test improves its sensitivity, potentially enabling relaxation of follow-up regimens for patients at lowest risk of stone episodes and dose modification of medications for those at highest risk.
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Bultitude, M., Thomas, K. Predicting stone episodes using cystine capacity. Nat Rev Urol 15, 8–9 (2018). https://doi.org/10.1038/nrurol.2017.189
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DOI: https://doi.org/10.1038/nrurol.2017.189