Table 1: “Current visit” declares visit of interest. Creatinine, Cystatine C, GFR, CRP, ESR, urine erythrocytes and leucocytes were normal. APC: absolute platelet count, LAC: lupus anticoagulant, uP-/uACR: urine protein-/albumine-to-creatinine ratio, α1Mg: α1-microglobuline, n.d.: not detectable, LLD: lower limit of detection (of protein in urine, therefore a ratio could not be calculated). Abnormal results are underlined.