What should you do if presented with an unsigned DNAR document during a cardiac arrest situation?

In the case of an unsigned Do Not Attempt Resuscitation (DNAR) document during a cardiac arrest situation, continuing CPR is appropriate because the absence of a signature indicates that the document may not be legally valid or actionable. By proceeding with CPR, the EMT ensures that the patient receives necessary emergency care while also following protocols related to resuscitation efforts.

Furthermore, contacting medical control for guidance is crucial in this circumstance. Medical control can provide direction based on local protocols and regulations which may include further validation of the DNAR document. This process ensures that any actions taken are compliant with legal and medical standards while prioritizing the best interests of the patient.

The other options imply actions that would prematurely halt necessary resuscitation efforts or involve verification processes that might delay treatment. In emergency medical situations, especially during cardiac arrest, providing immediate care is critical until all relevant information has been clarified. Therefore, continuing CPR while seeking further instructions allows for both immediate response and adherence to potential legalities surrounding the DNAR status.