Drugs take a long time to deteriorate in the hair and therefore testing can be done many days after consumption. A standard laboratory will check up to 90 days but a court or another law enforcing institution can have hair analyzed for more than 3 months as well.
For example the median expected annual pay for a typical Fitness Instructor in the United States is $40,966, so 50% of the people who perform the job of Fitness Instructor in the United States are expected to make less than $40,966. Source: HR Reported data as of October 2015. 1  Salary. 2  Salary + Bonus. 3  Benefits.
Training, experience and certification could all affect salaries. The published average salary for a personal trainer varies according to the source. O*NET Online reports fitness trainers and aerobics instructors earned a median salary of $33,020 in 2013. The U.S. Bureau of Labor Statistics reports an average annual salary of $37,790 for 2013.