尿液白血球酯解酶 Leucocyte Esterase
Urine Leucocyte Esterase (LE): Key Marker for Urinary Tract Infections (UTI)
*Leucocyte esterase is an enzyme released by white blood cells and is detected in urine to screen for urinary tract infections. A positive result indicates an increase in white blood cells in the urine, suggesting infection or inflammation.
*Normal Range
Normal Value: Negative(-) (no detectable leucocyte esterase).
Positive Result: Indicates elevated white blood cells, suggesting potential infection or inflammation.
*Causes of Positive Leucocyte Esterase
-Urinary Tract Infection (UTI):
Common causes include cystitis or pyelonephritis, often with bacterial growth.
-Urinary System Inflammation:
Conditions such as urethritis or interstitial cystitis.
-Other Causes:
Sample contamination (e.g., menstrual blood or vaginal secretions mixed with urine).
*Clinical Significance of Leucocyte Esterase
-Positive Result:
Often occurs alongside positive urine nitrites, supporting a UTI diagnosis.
-Negative(-) Result:
Does not completely rule out infection, as some infections may not elevate leucocyte esterase levels.
*Symptoms and Risks
-Symptoms:
Frequent urination, urgency, painful urination, fever, or lower back pain in severe cases.
-Risks:
Untreated infections may ascend to the kidneys, leading to pyelonephritis or other complications.
*How to Prevent Urinary System Infections?
-Stay Hydrated:
Drink plenty of water to increase urine output and flush bacteria.
-Avoid Holding Urine:
Regularly empty the bladder to reduce bacterial growth.
-Maintain Good Hygiene:
Clean the perineal area properly, wiping from front to back after urination.
-Proper Urine Sample Collection:
Use midstream urine samples to minimize contamination.
-Regular Checkups:
High-risk individuals or those with a history of infections should monitor urine health regularly.
*Conclusion
Urine leucocyte esterase is a vital screening marker for urinary tract infections, with a positive result indicating possible infection or inflammation. Healthy habits, adequate hydration, and timely testing are effective measures to prevent urinary tract infections. If the test is positive, seek medical attention promptly for further diagnosis and treatment.
*Leucocyte esterase is an enzyme released by white blood cells and is detected in urine to screen for urinary tract infections. A positive result indicates an increase in white blood cells in the urine, suggesting infection or inflammation.
*Normal Range
Normal Value: Negative(-) (no detectable leucocyte esterase).
Positive Result: Indicates elevated white blood cells, suggesting potential infection or inflammation.
*Causes of Positive Leucocyte Esterase
-Urinary Tract Infection (UTI):
Common causes include cystitis or pyelonephritis, often with bacterial growth.
-Urinary System Inflammation:
Conditions such as urethritis or interstitial cystitis.
-Other Causes:
Sample contamination (e.g., menstrual blood or vaginal secretions mixed with urine).
*Clinical Significance of Leucocyte Esterase
-Positive Result:
Often occurs alongside positive urine nitrites, supporting a UTI diagnosis.
-Negative(-) Result:
Does not completely rule out infection, as some infections may not elevate leucocyte esterase levels.
*Symptoms and Risks
-Symptoms:
Frequent urination, urgency, painful urination, fever, or lower back pain in severe cases.
-Risks:
Untreated infections may ascend to the kidneys, leading to pyelonephritis or other complications.
*How to Prevent Urinary System Infections?
-Stay Hydrated:
Drink plenty of water to increase urine output and flush bacteria.
-Avoid Holding Urine:
Regularly empty the bladder to reduce bacterial growth.
-Maintain Good Hygiene:
Clean the perineal area properly, wiping from front to back after urination.
-Proper Urine Sample Collection:
Use midstream urine samples to minimize contamination.
-Regular Checkups:
High-risk individuals or those with a history of infections should monitor urine health regularly.
*Conclusion
Urine leucocyte esterase is a vital screening marker for urinary tract infections, with a positive result indicating possible infection or inflammation. Healthy habits, adequate hydration, and timely testing are effective measures to prevent urinary tract infections. If the test is positive, seek medical attention promptly for further diagnosis and treatment.