Baking soda alone is not enough to fully mask THC metabolites present in urine samples during a UA (urine analysis). Using only baking soda may reduce acidity and increase the pH level of urine slightly, but it is not a reliable or effective method for passing a urine drug test.

To achieve accurate results, it is important to follow industry guidelines and standards for drug testing, which involve strict collection, handling, and analysis procedures to ensure the integrity and accuracy of the testing process.