Yesterday, I got lecture on bandage and splint.
Bandage is used on injury without fracture. Splint is for fracture. Both procedures are first aids.
Bandage shouldn’t be too tight but not too loose, either. A pen can be inserted in well-fitted bandage.
Splint should pass both proximal and distal joints. However, if the fracture is on femur, the outer splint extends from malleolus lateralis (outer ankle) to axilla (armpit) and the inner splint extends from malleolus medialis (inner ankle) to inguinal.
Note: due to poor internet connection, I can’t put picture in this post.