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Nephrology
All of the following statements are true except:
Hematuria is defined as the presence of at least 5 red blood cells (RBCs) in the urine
Urethrorrhagia refers to urethral bleeding in the presence of urine
Heme-positive urine without RBCs is due to either hemoglobin or myoglobin
False-negative results on Chemstrip testing may be due to a urine preservative such as formalin
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