Which of the following should not be performed before relieving a load in a crush injury scenario?

In a crush injury scenario, applying an ice pack is not appropriate before relieving the load. The primary concern in these situations is the potential for further tissue damage, which can occur when the load is released. Applying ice could complicate the assessment and treatment of the injury. It may also mask important signs of potential complications like compartment syndrome, which are crucial to recognize early on in the management of crush injuries.

In contrast, checking vital signs is essential for assessing the patient's overall condition and any immediate medical needs. Calling for additional medical support ensures that comprehensive care can be provided as soon as possible. Notifying the Medical Command Physician (MCP) for specific treatment guidelines is also vital in ensuring that the patient receives the most appropriate and standardized care in such emergencies.