Leukocyte Esterase
The Leukocyte Esterase test is a laboratory test that measures the presence of leukocyte esterase, an enzyme produced by white blood cells, in the urine. Clinicians typically order this test to help diagnose urinary tract infections (UTIs) and other conditions that may cause inflammation in the urinary system. It is commonly used in clinical situations where a patient presents with symptoms such as frequent urination, burning sensation during urination, or lower abdominal pain. The test can provide valuable information about the presence of white blood cells in the urine, indicating potential infection or inflammation. Therefore, the Leukocyte Esterase test is an essential diagnostic tool in managing urinary health.
Test Essentials
Specimen Required
Urine (24 hrs)
Test Category
Hematology
Turnaround Time
Results from the Leukocyte Esterase test are typically available within 24–48 hours after sample collection.
Clinical Information
Clinical Significance
Abnormal results from the Leukocyte Esterase test, such as a high level of leukocyte esterase, may indicate a urinary tract infection or other inflammatory conditions. However, it is important to note that a positive result does not provide a definitive diagnosis. The diagnostic value of the Leukocyte Esterase test lies in its ability to prompt further investigation. Only a healthcare provider can interpret the results in the context of your overall health and symptoms.
Reference Ranges
Reference ranges for the Leukocyte Esterase test can vary based on the laboratory and the method used for testing. Generally, the presence of leukocyte esterase may indicate inflammation or infection in the urinary tract. It is essential to interpret these results in conjunction with other clinical evaluations, as factors such as age, sex, and overall health can influence what is considered a normal range.
Sample Preparation
Before your Leukocyte Esterase test, no special preparation is required. You do not need to fast or stop any medications unless otherwise advised by your healthcare provider. It is essential to collect your urine sample accurately, typically over a 24-hour period, to ensure reliable results. Make sure to follow any specific instructions provided by your healthcare provider regarding sample collection.
Frequently Asked Questions
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