Advanced Directive or POLST? What's the Difference?

This short video from the Oregon POLST Coalition describes Advanced Directives and Physician Orders for Life-Sustaining Treatment  (POLST) forms, how they complement each other, and when a POLST form can be helpful. 

This 3-minute video illustrates changes in Betty's life, showing completing an advance directive when healthy and a POLST when she becomes seriously ill.