There is a strong focus on rendering aid with improvised means (for instance, using a branch and some rope to splint an injured extremity rather than using commercially available splinting devices). In wilderness settings it is unlikely that the specialized equipment found in an ambulance will be available, so the focus is on using only what is at hand in your assessment and care for a patient. There is also a greater focus on long-term care, since a WEMT may have to be with a patient for many hours, while most urban EMTs are with each patient for no more than an hour at the most.