Have lupus. Have had persistent moderate blood in urine (no RBC) for yrs with no known cause. Now have microscopic hematuria (+2-5), with trace protein?

LUPUS. It certainly sounds like prompt follow-up with one of your doctors would be in order; preferably your rheumatologist. If that follow up appointment is going to be delayed, then make an appointment with your primary care Doctor Who can initiate some further testing and evaluation.