In a medical emergency like the one you described (penetrating injury with a rebar through the abdomen), the first priority should be to seek immediate medical attention. It's crucial to call emergency services or go to the nearest emergency room as quickly as possible.
When it comes to handling the patient, it's essential for medical professionals to use their judgment and follow established protocols. Restraining a patient's hands in such a situation could potentially be risky and may cause further injury or complicate the medical treatment process. If the patient is conscious and alert, medical staff should attempt to keep the patient calm and reassure them while avoiding unnecessary movements that could exacerbate the injury.
In cases of impalement or penetrating injuries, medical professionals are trained to stabilize the object and secure it in place to prevent further damage until surgery or a more controlled environment is available for removal.
Each emergency situation is unique, and the appropriate course of action will depend on the specific circumstances, the patient's condition, and the available medical resources. Medical professionals on the scene will make decisions based on their training and experience to ensure the best possible outcome for the patient. Therefore, it is essential to leave such decisions to the healthcare providers and emergency responders at the scene.