Final answer:
If you are trained in first aid and believe you can help, approach the coworker, assess the situation, provide first aid if it is safe, and wait for professional medical help to arrive.
Step-by-step explanation:
If you have been trained as a first aid provider and believe you can help, it is important to assess the situation and take action. In this case, your coworker is holding his abdomen and groaning after being struck by a bicyclist. This could be a sign of a serious injury like internal bleeding, and immediate medical attention may be needed. You should:
- Approach your coworker and ask if he is okay.
- Assess the situation to determine if there are any immediate dangers.
- If it is safe to do so, provide first aid by applying pressure to any bleeding and comforting your coworker while waiting for professional medical help to arrive.
Remember, it is important to provide assistance if you have the training and ability to do so, but never put yourself in danger if the situation is unsafe.