What is leukocyte esterase plus 1?

Leukocyte esterase plus 1 indicates the presence of leukocyte esterase, an enzyme produced by white blood cells, in a urine sample. This result typically suggests a mild level of white blood cell activity, which can be associated with urinary tract infections or inflammation. A "plus 1" result is often considered a low positive, indicating the potential need for further evaluation or testing. It is important to interpret this result in conjunction with other clinical findings and laboratory tests.