My at home urine test always shows 30 microalbumin. on a scale of zero...10...30..50..150. it always shows 30 and sometimes shows trace protein.worry?

Persistent: proteinuria suggest other issues, most likely renal issues. You need an examination, a 24 hr urine analysis and ongoing lab studies of renal function as well as a renal ultrasound. I question why you are testing your own urine?: diabetes? hypertension, history of renal insufficiency? Get an appointment with a medical physician, preferably, a nephrologist.