Which of the following is a confirmatory urine test?

The Ictotest is a confirmatory urine test specifically designed to detect bilirubin in the urine, which can be an indicator of liver dysfunction or hemolysis. This test is considered confirmatory because it provides a more definitive assessment of bilirubin presence than routine dipstick tests. The Ictotest utilizes a solid-phase test that enhances the color development of bilirubin, allowing for higher sensitivity and specificity compared to other methods.

In contrast, the other tests mentioned serve primarily as screening tools. The pH strip test measures the acidity or alkalinity of urine but does not confirm any specific condition. Similarly, the nitrate test is used to screen for urinary tract infections by detecting the presence of nitrates, and the leukocyte esterase test screens for white blood cells in urine, indicating infection or inflammation. While these tests provide valuable information, they do not confirm specific diagnoses like the Ictotest does for bilirubin.