Leukocyte esterase

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Male urinary system

WBC esterase

There are no risks.

The following may create a false positive result:

• Vaginal secretions (such as blood or heavy mucus discharge)
• Trichomonas infection (such as trichomoniasis)

False negative tests can be caused by:

• High levels of protein
• High levels of vitamin C

Review Date: 01/10/2010
Reviewed By: David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Louis S. Liou, MD, PhD, Assistant Professor of Urology, Department of Surgery, Boston University School of Medicine.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).

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