Yes, you can. I just had a yearly work up done and on my urinalysis there was apparently some blood showing in the urine. Hemoglobin was A Trace Leukocites A TRACE Under Urine Microscopic the RBC said A 4-10 I have had the urge to urinate quite frequently the last few days, and not much urine is passed. It is a strong feeling when I have to go, actually quite uncomfortable. My doctor said the test results do show some trace of blood in the urine, but that I shouldn t have that at my age now. I am 67 yrs. of age. Something I had been doing recently is holding it when I have had to go, on account of talking on the phone, and also the other day when I was on the freeway I had the urge to go and had to hold it for quite a while until I got to McDonalds restaurant, which was not very good. Anyway, the doctor wants me to go for another test tomorrow morning, and see from there. Any info or comments you may have on this would be much appreciated. I was wondering what the RBC 4-10 means, as I had never seen that before on any of my tests. Thankyou. Darlene