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- Patient Comments: Urinalysis - Symptoms
- Patient Comments: Urinalysis - Results
- What is a urinalysis?
- What can urinalysis results show?
- Who is involved in the interpretation of urinalysis?
- What types of doctors perform urinalysis?
- What does urinalysis involve?
- What is macroscopic urinalysis?
- What is urine dipstick chemical analysis?
- What are the pros and cons of dip sticks?
- What is microscopic urinalysis?
- How is microscopic urinalysis done?
- What kind of cells can be detected?
- What can the presence of red blood cells in the urine mean?
- What can the presence of white blood cells in the urine mean?
- Other than urinalysis, what are other common urine tests available?
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What can the presence of red blood cells in the urine mean?
A high count of red blood cells in the urine can indicate infection, trauma, tumors, or kidney stones. If red blood cells seen under microscopy look distorted, they suggest kidney as the possible source and may arise due to kidney inflammation (glomerulonephritis). Small amounts of red blood cells in the urine are sometimes seen young healthy people and usually are not indicative of any disease.
What can the presence of white blood cells in the urine mean?
Urine is a generally thought of as a sterile body fluid, therefore, evidence of white blood cells or bacteria in the urine is considered abnormal and may suggest a urinary tract infection such as, bladder infection (cystitis), infection of kidney (pyelonephritis). White blood cells (WBCs) may be detected in the urine through a microscopic examination (pyuria or leukocytes in the blood). They can be seen under high power field and the number of cells are recorded (quantitative) as "rare,""few,""moderate," or "many."
White cells from the vagina or the opening of the urethra (in males, too) can contaminate a urine sample. Such contamination aside, the presence of abnormal numbers of white blood cells in the urine is significant.