When in a survival situation what are some factors that need to be considered?

The first thing to consider is how you're feeling: Ill, fatigued, thirsty, hungry, if you have any injuries that need treating. This also goes for anyone who might be with you. The next thing to do is to take stock of any and everything you or anyone else there may have with you that may be of use.

Three primary things to consider is regulation of body temperature through building a fire and/or shelter, finding a source of water, and acquiring food. The order of meeting these priorities will depend on the situation.