Know your Leukocyte Esterase. Know your health.
Test your Urine Leukocyte Esterase and 100+ other biomarkers in a single blood draw.
Leukocyte esterase is an enzyme released by white blood cells. Its presence in urine signals that white blood cells are there, which usually points to inflammation or infection in the urinary tract. A positive result, especially together with nitrites, strongly suggests a urinary tract infection. It can occasionally be positive from other causes of urinary tract inflammation. This dipstick marker is confirmed by counting white blood cells under the microscope.
Leukocyte Esterase isn't sold on its own. It comes in a routine urinalysis, about $45. A fuller workup adds Vitamin D ($75), hs-CRP ($69), ApoB ($50), and ApoA1 ($50). You can test Leukocyte Esterase and 100 other biomarkers for $190 as part of an Empirical membership.
Empirical is FSA/HSA eligible, so you can pay with pre-tax dollars. Fast for 8-12 hours beforehand for the most accurate lipid and metabolic results, and expect results in days rather than weeks.
Leukocyte Esterase is drawn at 2,200+ Quest and BioReference patient service centers across the US, so there's usually one within a short drive. Browse the full directory to find the one closest to you.
Test your Urine Leukocyte Esterase and 100+ other biomarkers in a single blood draw.