if you have SLE you have a fair chance of kidney
involvement. See your kidney involvement with help of these following tests.
24 hrs urine protein and creatinine
urine routine examination
Blood DsDna level
Blood C3 level.
if these tests show abnormalty. you should go for kidney biopsy
and specific treatment as per results of the biopsy.
the ultrasould is OK good kidney sizes.
hope this helps,