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  2. Leukocyte esterase - Wikipedia

    en.wikipedia.org/wiki/Leukocyte_esterase

    Leukocyte esterase (LE) is an esterase (a type of enzyme) produced by leukocytes (white blood cells). A leukocyte esterase test (LE test) is a urine test for the presence of white blood cells and other abnormalities associated with infection. White blood cells in the urine can indicate a urinary tract infection (UTI). Positive test results may ...

  3. White blood cell - Wikipedia

    en.wikipedia.org/wiki/White_blood_cell

    An excess of white blood cells is usually due to infection or inflammation. Less commonly, a high white blood cell count could indicate certain blood cancers or bone marrow disorders. The number of leukocytes in the blood is often an indicator of disease, and thus the white blood cell count is an important subset of the complete blood count.

  4. Urinalysis - Wikipedia

    en.wikipedia.org/wiki/Urinalysis

    Leukocyte esterase, an enzyme found in granulocytes, is measured to estimate the concentration of white blood cells. [53] The action of the enzyme on chemicals in the test pad ends in the creation of a purple azo dye. [54]

  5. Reference ranges for urine tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_urine...

    White blood cells (WBCs) 0 [2] 2 [2] pH: 5 [2] 7 [2] (unitless) Protein: 0: ... Leukocytes: n/a: 0 / negative [2] See also. Reference range; Reference ranges for ...

  6. Urine test strip - Wikipedia

    en.wikipedia.org/wiki/Urine_test_strip

    The urine test strip test for white blood cells detects leukocyte esterase, which is present in azurophilic granules of monocytes and granulocytes (neutrophilic, eosinophilic and basophilic). Bacteria, lymphocytes and epithelial cells from the genitourinary tract do not contain esterases. [21]

  7. Bacteriuria - Wikipedia

    en.wikipedia.org/wiki/Bacteriuria

    The leukocyte esterase test indirectly detects the presence of leukocytes (white blood cells) in urine which can be associated with a urinary tract infection. In the elderly, the leukocyte esterase test is often positive even in the absence of an infection.

  8. List of immune cells - Wikipedia

    en.wikipedia.org/wiki/List_of_immune_cells

    This is a list of immune cells, also known as white blood cells, white cells, leukocytes, or leucocytes. They are cells involved in protecting the body against both infectious disease and foreign invaders .

  9. Pyuria - Wikipedia

    en.wikipedia.org/wiki/Pyuria

    Pyuria is the condition of urine containing white blood cells or pus. Defined as the presence of 6-10 or more neutrophils per high power field of unspun, voided mid-stream urine, it can be a sign of a bacterial urinary tract infection. Pyuria may be present in people with sepsis, or in older people with pneumonia.