A routine urinalysis (UA) can reveal diseases that have gone unnoticed because they do not produce striking signs or symptoms. Examples include diabetes, various forms of kidney disease, and chronic urinary tract infections.
The UA involves a number of tests to detect and measure various compounds that pass through the urine. A routine urinalysis consists of three distinct testing phases:
- Physical examination — evaluates urine color, clarity, and concentration
- Chemical examination — tests chemically for 9 substances that provide valuable information about health and disease
- A microscopic examination if needed — identifies and counts the type of cells, casts, crystals, and other components (bacteria, mucus) that can be present in urine
Fasting is not required for this test.
Special Note: Certain medicines change the color of urine but is not necessarily a sign of disease. doctor may tell you to stop taking certain medications and supplements that can affect test results. These can include:
- Iron supplements