When assessing the arms, what is a key factor to observe?

When assessing the arms, observing bruises and bumps is crucial as they can indicate potential injuries, trauma, or underlying medical conditions. Bruises may reveal recent or past injuries, while bumps could signify swellings, lesions, or issues related to the skin or underlying tissues. This assessment is essential in a first aid or lifeguarding context because identifying such injuries helps in evaluating the overall condition of the individual and determining appropriate care or necessary interventions.

While muscle strength, presence of hair follicles, and range of motion are also important to consider during a thorough assessment, they do not provide immediate visual clues regarding trauma or injury that could be critical in urgent situations. Focusing on visible signs like bruises and bumps allows for rapid recognition of possible serious conditions that require prompt attention.