Hi and Welcome
I am sorry to hear that you were sent to the Hospital suffering with such a sudden and severe issue.
I hope your biopsy comes back with solid answers.
Lupus can affect the Kidneys.It is called Lupus Nephritis.I would ask what other tests were ran that made the Dr think Lupus.Were you referred to a Rheumy or are you waiting to get the biopsy results back first?
Hope you hear something soon and are comfortable.
SLE w/Sjogrens Overlap and Raynaud's diagnosed in 2007.Fibro in 2009.
The Early Bird May Get The Worm But the Second Mouse Gets The Cheese.