What is the common laboratory test used to assess kidney function in SLE?

Urinalysis is a common laboratory test used to assess kidney function in individuals with Systemic Lupus Erythematosus (SLE). In SLE, the kidneys can be significantly affected, leading to a condition known as lupus nephritis. A urinalysis can reveal important indicators of kidney health, such as the presence of protein (proteinuria), red blood cells (hematuria), and casts, which are all signs of kidney damage or inflammation.

This test provides valuable information about how well the kidneys are filtering blood and can help in monitoring disease progression and the effectiveness of treatment. By detecting changes in urine composition, urinalysis plays a crucial role in the early identification of lupus nephritis and in guiding subsequent management strategies.

Other tests, such as blood glucose tests, complete blood counts, and electrolyte panels, do have their own clinical uses but do not specifically focus on kidney function as thoroughly as urinalysis does in the context of SLE.