The ddx of intrinsic renal disease is: glomerular, tubular, interstitial, or vascular 3. Glomerulonephritis presents with an active sediment (RBC, protein) and nephrotic syndrome presents with a bland sediment (heavy protein, otherwise negative U/A).
Smell is the most subtle of senses touched by spring. In spring there is the sweet fragrance of flowers, which is perhaps the first thing many think of. But my thoughts are drawn to subtler scents. In winter the sun is low and weak, giving little light and even less warmth.
I definitely prefer the smell of fresh Lilacs over any oil, candle, or anything else that I've smelled. The best way I know how to describe them is this: Fresh Lilacs smell like sweet heaven on a perfect spring day! That doesn't do them justice though, not even close! I don't know where you're located but maybe you can try to find some at a greenhouse or nursery.