Urine Routine (Urinalysis)
A routine urinalysis evaluates urine in three parts: physical (color, clarity, specific gravity), chemical (protein, glucose, ketones, blood, nitrite, leukocyte esterase, pH, bilirubin, urobilinogen), and microscopic (RBCs, WBCs, epithelial cells, casts, crystals, bacteria, yeast). It is a cheap, high-yield test for urinary tract infection, diabetes, kidney disease, and dehydration — and is ordered routinely in most hospital admissions and health checks.
Expected Result
Normal
All components within expected limits
Urinalysis reports many parameters — a normal result means all of them are in the expected range (see below).
This is a qualitative test — results are reported as positive or negative rather than as a numeric range. Interpretation may vary by laboratory method; always review with your doctor.
What a Negative Result Means
A normal urinalysis: clear appearance, pH 4.5–8.0, specific gravity 1.005–1.030, negative for protein, glucose, ketones, blood, nitrite, leukocyte esterase, and bilirubin, with fewer than 5 WBCs and 5 RBCs per high-power field. This is the desirable result.
What a Positive Result Means
Common abnormal patterns: WBCs + leukocyte esterase + nitrite positive → urinary tract infection; protein positive → kidney disease or nephrotic syndrome; glucose + ketones → uncontrolled diabetes or starvation; blood positive → infection, stones, tumor, glomerulonephritis, trauma, or menstrual contamination; bilirubin + urobilinogen → liver disease. Any abnormal finding should be interpreted alongside symptoms and follow-up testing.
Frequently Asked Questions
How should the urine sample be collected?
A clean-catch midstream sample reduces contamination. Clean the genital area first, pass a small amount of urine into the toilet, then collect the middle portion in the sterile container. Early morning samples are most concentrated and give the best sensitivity for protein, glucose, and cellular elements.
What does 'pus cells' or 'WBCs' on my report mean?
Pus cells are white blood cells (neutrophils) in urine and suggest urinary tract inflammation — most commonly infection. Fewer than 5 WBCs per high-power field is normal. Five to ten is borderline; more than 10 with symptoms usually indicates infection. Sterile pyuria (WBCs without bacteria) occurs in tuberculosis, stones, and some kidney diseases.
Is it normal to have trace protein on a urine routine?
Trace protein on a dipstick is common and often not significant — it can appear with dehydration, fever, vigorous exercise, or orthostatic proteinuria. Persistent 1+ or greater protein, especially confirmed on two samples, warrants an ACR and a kidney function test. Heavy proteinuria (3+ or 4+) is always abnormal and requires evaluation.
This information is for educational purposes only and should not replace professional medical advice. Always consult your doctor for interpretation of your test results.
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