In which of the following scenarios should you never attempt to realign a bone?

When considering when to avoid realigning a bone, it's critical to recognize that an attempt to do so can lead to further damage, especially in cases of suspected fractures or joint damage. If there is a possibility of a fracture or injury to a joint, realignment might aggravate the injury, disrupt circulation, or cause additional damage to surrounding tissues, including nerves and blood vessels. In these scenarios, maintaining the position of the injured limb as it is found is typically the best option until professional medical help can be obtained.

The other scenarios present instances where realignment might be more feasible or less harmful. For instance, if there’s no visible injury or if the injury is described as painless, there may be less risk associated with attempting to assess and potentially realign. However, any suspicion of fracture or joint compromise necessitates a cautious approach to avoid exacerbating the situation.