Final answer:
In the absence of advanced tools, swelling, deformity, and pain on palpation should prompt you to assume a fracture and stabilize the limb for transport.
Step-by-step explanation:
Though it is impossible to be sure out in the field, you should assume that the survivor has a fracture in the upper left arm. The initial signs you noted, such as swelling and deformity, followed by the survivor's painful response to palpation, are classic indicators of a possible fracture. In such emergency situations, a rapid assessment is crucial for detecting life-threatening or limb-threatening conditions. Early recognition and stabilization of fractures helps to prevent further injury, reduce pain, and facilitate effective and timely treatment. However, without the available advanced diagnostic tools like MRI or CT scanning in the field, it is important to stabilize the limb and prepare the survivor for transportation to a medical facility where definitive diagnosis and treatment can be provided.
A fracture is a break or crack in a bone, often caused by trauma or excessive force. Common types include stress fractures, hairline fractures, and compound fractures. Diagnosis involves imaging like X-rays. Treatment varies from immobilization and casting to surgical intervention depending on the severity. Recovery involves rest, rehabilitation exercises, and monitoring to ensure proper healing and function restoration.