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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 be clinically significant in the right context. The LE test is also used to screen for gonorrhea and ...
Red blood cells can sometimes be distinguished from free hemoglobin or myoglobin as the former causes a speckled pattern on the test pad while the latter results in a uniform color change. White blood cells. Leukocyte esterase, an enzyme found in granulocytes, is measured to estimate the concentration of white blood cells.
LOINC. 33255-1, 24318-8, 69738-3. A white blood cell differential is a medical laboratory test that provides information about the types and amounts of white blood cells in a person's blood. The test, which is usually ordered as part of a complete blood count (CBC), measures the amounts of the five normal white blood cell types – neutrophils ...
e. Reference ranges for urine tests are described below: Measurement. Lower limit. Upper limit. Unit. Urinary specific gravity. 1.003 [1] [2] 1.030 [1] [2]
Pyuria. White blood cells seen under a microscope from a urine sample. 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 ...
The test for leukocyte esterase is indicative and does not replace microscopic examination of urine. It is normal to find up to 3 (occasionally 5) leukocytes per high power field (40X) in a urine sample, with women having slightly higher results owing to vaginal contamination. [citation needed] Higher numbers indicate urinary infection.
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t. e. Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry ...