Urine analysis displayed leukocyturia and erythrocyturia
. Renal ultrasonography exhibited normally dimensioned kidneys with preserved cortico-parenchymal differentiation and increased echogenicity.
Anti-MPO ANCA associated glomerulonephritis was diagnosed based on impaired renal function (eGFR CKD-EPI 14 mL/min/1.73 [m.sup.2]) with glomerular erythrocyturia
, elevated inflammation parameters, and anti-MPO ANCA antibodies (15 U/L).
Proteinuria associated with erythrocyturia
indicates glomerulopathy while proteinuria associated with leukocyturia, bacteriuria and non-squamous epithelial cells (NEC) indicates a tubulointerstitial disease.
Urine examination showed mild proteinuria, leukocyturia, and erythrocyturia
and hyaline cylinders were observed in urine samples.
Urinalysis by chemical testing of urine was performed using SD Urocolor[TM] 10 test strips (urostrips) for Bilirubin, Urobilinogen, Nitrites, Specific gravity, protein, glucose, PH, erythrocyturia
, leukocyturia and ketones according to manufacturer's instructions.
), a history of nephrotoxic drugs or contrast exposure at least 1 week before the study, anemia, infectious or systemic inflammatory disease associated with increased erythrocyte sedimentation rate, C-reactive protein and/or leucocytosis.