There are a lot of innovative things happening with urine drug testing services, which is why this type of testing is becoming more popular. One example is the development of ultra- sensitive test methods that can identify lower levels of drugs in someone's system. This means that people who have been using marijuana or other drugs for a shorter period of time may not show up on a traditional drug test. This could be important in cases where someone has taken multiple medications, making it difficult to determine which one contributed to a positive result. Overall, there are many ways that urine drug test full service is improving and growing more popular each day.