What does a reagent strip consist of?

A reagent strip is designed specifically for the qualitative and quantitative analysis of urine and other body fluids, featuring chemical-impregnated absorbent pads that are securely attached to a flexible plastic strip. This configuration allows for ease of handling and allows for dipping directly into a urine sample. Each pad on the strip contains specific reagents that change color in response to the presence and concentration of various substances in the urine, such as glucose, protein, ketones, and pH, among others.

The plastic strip provides structural support, ensuring the pads remain intact and properly aligned for accurate testing. This design is crucial because it facilitates easy reading of the results and reduces the risk of contamination and damage during use. The other options do not accurately describe the physical structure of a reagent strip, thereby highlighting the importance of the correct materials and construction in the development and use of this essential diagnostic tool.