Leukocyte esterase 3+意思

"Leukocyte esterase 3+" is a term used in urine analysis to describe the level of leukocyte esterase present in a urine sample. Leukocyte esterase is an enzyme produced by white blood cells (leukocytes), particularly neutrophils, which are part of the body's immune response to infection.

A urine dipstick test is a common method used to detect the presence of leukocyte esterase in urine. The test works by measuring the activity of this enzyme, which indicates the presence of white blood cells in the urine. The results of the test are typically reported as follows:

A "3+" result indicates a high level of leukocyte esterase in the urine, which is often associated with a significant infection, particularly a urinary tract infection (UTI). The presence of leukocyte esterase in urine is a non-specific marker for infection but is a useful indicator for healthcare providers to consider when diagnosing and managing patients with suspected UTIs or other inflammatory conditions of the urinary system.

If a urine sample tests positive for leukocyte esterase, particularly at levels of 3+ or higher, it may also be accompanied by other signs of infection, such as the presence of bacteria, nitrites, or blood in the urine, as well as symptoms like pain or burning during urination (dysuria), frequent urination, or urgency to urinate.

It's important to consult a healthcare provider for the interpretation of urine test results and for appropriate diagnosis and treatment, as the presence of leukocyte esterase can also be related to other conditions beyond UTIs.