Proteinuria Variability and IgAN Diagnosis

Key Takeaways

• Clinicians evaluate proteinuria significance using 24-hour urine collection or spot urine protein-to-creatinine ratio, focusing on quantity and persistence.
• Proteinuria levels exceeding 1g/day typically prompt further investigation for potential IgA nephropathy.
• Persistent proteinuria with hematuria, especially post-upper respiratory infections, suggests IgAN over other kidney disorders.