Hi and welcome to HCM.
These findings are always doubtful and usually means just uro infections. ALbumins may indicate kidney
disorders, but it should be investigated yet by specific kidney tests. Male children have less uroinfections then female and in male cases it should be more detailed evaluated. There might be some congenital anomalies. But as i said in most common cases this isnt serious and will heal after antibiotic therapy. WIsh you good health.