San Jose, CA
A 64-year-old female asked:
Handed in a urine sample pale yellow on a sat results back and showed sm blood no rbc but color was stated as red. why would the color change from what was handed in. ?
1 doctor answer • 1 doctor weighed in
Nephrology and Dialysis 43 years experience
If the urine is not tested right away, the red cells can be hemolyzed which give the urine a reddish color, the dipstick is still positive for blood but microscopic exam can be (-) for red cells. However, your result only showed small blood by dipstick test so it did not correlate well with the hemolyzed red cells and red urine color.
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Answered Sep 22, 2021
Last updated Sep 23, 2021
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