female, age 56, saw blood in urine, no other symptoms. What does urinalysis result mean: Sp.GR/refract: 20; Blood: 4+; pH: 6; protein: trace; urgbilinogen: normal; nitrite: 0; leuk esterase: 0; WBC: 3-5; RBC: TNTC; EPI Cells 6 - 10; Bacteria, Mucus, casts & Crystals all: 0's? Thanks.