The state of Louisiana does not have their own guidelines for paying overtime to a non-exempt employee. They use the federal guideline:
An employer must pay a non-exempt employee a minimum of 1–½ times their base wage rate for all hours worked over 40 in a workweek. There is no federal law limiting the number of hours an employer can require a non-exempt employee to work so long as they pay overtime. Like with minimum wage rates, some states have more stringent overtime laws. Source
It doesn’t matter what field the person works in. As long as the job is classified as non-exempt, overtime pay is due for anything over 40 hours a week.