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An arm sling holds the forearm in a raised or horizontal position and can support an injured upper arm, forearm and wrist. The sling is also a useful visual warning to others that someone is injured.
Ask the casualty to support their arm with their other hand. Gently slide the triangular bandage underneath the arm. The point of the triangle should be underneath the elbow of the injured arm. Bring the top end of the bandage around the back of the neck.
Fold the lower end of the bandage up over the forearm to meet the top of the bandage at the shoulder of the injured side.
Tie the two ends of the bandage together in a reef knot above their collar bone and tuck in the free ends.
Adjust the sling so that it supports their arm all the way to the end of their little finger.
Make sure that the edge of the bandage by the elbow is secured by twisting the fabric and tucking it in, or using a safety pin to fasten.
Check the circulation in their fingertips every 10 minutes. Press their nail for 5 seconds until it turns pale, then release to see if the colour returns within 2 seconds.
Clinically reviewed by Dr Lynn Thomas, MStJ, BSc, MBBS, MA, FRCP
More information about our clinical expertise
An elevation sling is different to an arm sling. It supports the casualty's forearm and hand in a raised position.
Injuries to the soft structure around the bones and joints are commonly called strains and sprains. They are often associated with sports activities.
Elbow and knee injuries such as sprains and strains can be supported by a roller bandage. Find out how to do elbow and knee bandages.
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