When essential duties are at issue, OK to base medical exam on FMLA certification

A new 8th Circuit Court of Appeals case allows employers to use an employee’s FMLA certification as the basis for requesting a fitness-for-duty exam if the certification asserts that the employee can’t perform an essential function of her job. That’s especially true in high-pressure professions when an alleged FMLA serious health condition affects an employee’s ability to function while at work.