I don't see white blood cells mentioned here, but this is a cut and paste of the lab results:
[....]
RBC, Urine, POC Small Negative
Nitrite, Urine, POC Negative Negative, Indeterminate
Leukocytes, Urine, POC Negative Negative
Leukocytes = white blood cells. Negative nitrite and negative leukocytes indicate no infection. Bacteria produce nitrite. The body responds to urinary bacterial infection with increasing the number of white blood cells in the urine. A small number of white blood cells are normally present. Having red blood cells present is not normal.
It appears that a
microscopic examination of the urine wasn't done. The results you show are from a "dipstick" examination only. Any unusual result from a dipstick exam should be followed up with a microscopic exam right then and there. Ten ml of urine is centrifuged for 5-10 minutes, the top part (9ml) decanted, then the contents of the remaining 1ml is mixed so that the button of solid material at the bottom of the tube is re-suspended. A small amount of this is put on a slide, covered with a cover slip, then examined under the microscope for about two minutes.
The amount of white cells, red cells,
crystals, casts, etc. are graded as occasional, 1+, 2+, 3+, etc. The "+" designations have precise enumerations, for example 1+ white cells are 5 - 20 per high power field. If crystals are present, they are designated as to type, for instance, calcium oxalate or triple phosphate. It's possible that if you have a stone, that crystals of the same type of your stone could be present in your urine. It also would have been helpful to see if any casts were present.
I would ask for a repeat urine examination including
microscopic examination. This is not the same thing as a microbiologic culture, which involves trying to grow micro-organisms from the urine and usually takes several days. Some doctors and nurses have a bad habit of saying "with micro" when submitting a urinalysis request and lab personnel then need to ask, "Do you want a microscopic exam or microbiologic culture?" (Happened to me when I was working.)
By the way, the leukocyte (white blood cell) test from the dipstick is a chemical test for leukocyte esterase, an enzyme produced from white blood cells. This is how they could tell that no white blood cells were present without doing a microscopic examination.