Table 1 Overview of the eight films developed for the validation process

Film 1

Female driver in traffic accident. Two bystanders present

Unconscious. Blocked airways

Driver brought out of the car, lying on the ground

Bystander 1 have lifted driver’s jaw, opened mouth

Film 2

Male driver in traffic accident. Several bystanders present

Unconscious. Blocked airways. Modest bleeding from arm

Chaotic situation. Man sitting in driver seat with blocked airways (snoring)

One bystander holds a cloth loosely to the modest bleed

Film 3

Construction worker with severe cut from disk saw. Several colleagues present

Awake, has a severe cut on forearm

Sitting in upright position leaning backwards at wall

Two colleagues handling the bleed

Colleague 1 lifting the forearm, the other having bound a cloth tightly over wound, pressing down

Blanket lain over man’s shoulders

Film 4

Man cut on log-splitter in private garden. 2 neighbors present

Awake. Severe cut in hand

Sitting in upright position on the ground, the neighbors standing a few meters away

The man has been given a cloth, severe bleed from wound

Film 5

Man fallen from house roof (approx 6 m). Several bystanders present

Unconscious, breathing

Man lying on the ground. Two bystanders taking care of the man

Patient in recovery position. A jacket has been lain under him, a blanket on top of him

Film 6

Old man, in-door fall. Wife and son present

Unconscious, breathing

Man lying on the floor. Wife and son present in the same room

Lying in supine position. No measures performed

Film 7

Car driven off the road. Driver sole person in the car. Several bystanders present

Unconscious, breathing

Brought out of the car

Jacket lain under him as well as on top of him. Dressed in a warm hat

Film 8

Woman fallen off bike, been riding her bike in the woods. Several bystanders present

Unconscious, breathing

Lying beside her bike. Thin clothing

Patient in recovery position