Interpreting urine dipstick tests in adults - Best Tests ...
The dipstick for blood is prob-ably the test result of greatest util-ity to the EP, but this is a very sensitive test that has a number of false-positives. The few RBCs that normally inhabit the urine (2–3) can give a trace reading.The dipstick does not identify RBCs; it essentially detects the presence of RBC peroxidase activ-ity, whether these cells are intact, or if there is merely free hemo-globin in the specimen. Even if …
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