What is the primary reason for monitoring urinalysis in a child diagnosed with IgA vasculitis?

Monitoring urinalysis in a child diagnosed with IgA vasculitis is primarily focused on assessing hematuria and proteinuria. IgA vasculitis, also known as Henoch-Schönlein purpura, can lead to inflammation of the small blood vessels and a subsequent impact on kidney function. The kidneys are particularly affected in several cases, leading to symptoms such as blood in the urine (hematuria) and elevated levels of protein in the urine (proteinuria).

Detecting hematuria can help indicate renal involvement, which is a key concern in the management of IgA vasculitis. Similarly, proteinuria is an important indicator as it can signify nephritis, which can complicate the condition. Regular monitoring of these urinalysis parameters enables healthcare providers to assess the severity of kidney involvement, adjust management protocols, and intervene early if necessary.

The considerations surrounding liver function, hydration status, and urinary tract infections, while important in pediatric care, are not the primary focus in the context of IgA vasculitis, where renal involvement is the critical aspect needing close attention through urinalysis.