Nechiporenko Urine Test
The Nechiporenko urine test is a quantitative method for examining urine sediment, aimed at counting the number of leukocytes, erythrocytes, and casts in 1 ml of urine. This test is used to diagnose inflammatory processes and pathologies of the urinary system, as well as to monitor the effectiveness of treatment for kidney and urinary tract diseases.
Indications for the test:
- Diagnosis of hidden inflammatory processes
- Clarification of the cause of hematuria and leukocyturia
- Diagnosis of cylindruria
- Monitoring ongoing treatment
Normal reference values:
- Leukocytes — up to 2000 per 1 ml
- Erythrocytes — up to 1000 per 1 ml
- Hyaline casts — up to 20 per 1 ml
- Waxy, granular, erythrocyte and epithelial casts — absent
An increase in leukocytes may indicate pyelonephritis, cystitis, urethritis, and other inflammatory diseases. An increase in erythrocytes suggests glomerulonephritis, urolithiasis, trauma, or tumors of the urinary tract. Increased casts indicate kidney damage such as glomerulonephritis, pyelonephritis, renal failure, and others.
For the test, a midstream portion of morning urine is required, collected in a clean dry container after thorough hygiene of the external genitalia. This study provides a more accurate count of formed elements compared to a general urine test, as the count is performed per 1 ml of sediment.
This method is widely used by therapists and nephrologists for diagnosing and monitoring diseases of the urinary system.