What is the purpose of urinalysis?

• A. Measures blood pressure and heart rate.
• B. Explores the physical, chemical, and microscopic properties of urine and is important in diagnosis.
• C. Detects hormonal levels in urine.
• D. Evaluates liver enzyme activity.

Answer: (B)

Urinalysis is used to examine urine in three complementary ways—the way it appears (physical properties), what it contains (chemical properties), and what is seen under the microscope (microscopic properties). This broad assessment helps clinicians spot problems: color, clarity, and odor give quick clues; chemical tests check for things like protein, glucose, ketones, bilirubin, and markers of infection such as nitrites and leukocyte esterase; microscopic analysis looks for cells, bacteria, crystals, or casts that point to infections, kidney disease, or metabolic issues. Because of this, urinalysis is a useful tool for diagnosing conditions such as kidney disease, urinary tract infections, diabetes, and certain liver problems indicated by bilirubin or urobilinogen in urine. It is not used to measure blood pressure or heart rate, nor to quantify hormones in urine or liver enzymes in the bloodstream.