Laboratory professionals use a variety of ways to test urine samples. One is direct observation under a microscope and another is through an immersion of urine analysis strips (or urine test strips) in the sample.
Urine analysis strips are basic materials found in diagnostic laboratories. A standard urine strip has up to 10 different chemical pads that include glucose, blood, protein, leukocytes, nitrite, ketones, urobilinogen, bilirubin, pH value, and specific gravity pads. The strip is immersed in a urine sample from 1 to 2 minutes. Once taken out, the strip will change colors which signifies a chemical reaction with the urine.
Doctors look at the results on the chemical pad reactions to determine screening parameters from urine analysis strips. For instance, positive reactions to leukocytes, nitrite, protein, blood, specific gravity and pH level indicate diseases of the kidneys and urinary tract.
Liver diseases are detected by reactions with urobilinogen and biliburin, while carbohydrate metabolism disorders are detected in reactions to glucose and ketones chemicals.
The use of urine analysis strips is a fast and easy method of diagnosing a variety of diseases. It is used in many healthcare facilities for routine examinations, for self-monitoring of patients, as aid in preventive medication and in guided monitoring by healthcare workers. It is especially helpful in detecting diabetic and kidney diseases patients in group screenings. Today, automated urine test strip analyzer makes this instrument a mainstay of modern urine analysis laboratories.