Which option represents a conclusive sign of death that would end resuscitation in the field?

Which option represents a conclusive sign of death that would end resuscitation in the field?

• A. Lividity
• B. Rigor mortis
• C. Both lividity and rigor mortis
• D. None of the above

Answer: (C)

Conclusive signs of death in the field are those that indicate resuscitation should not be attempted. Lividity (livor mortis) and rigor mortis are two such signs. Lividity occurs when blood settles in dependent parts after circulation stops, producing a dark discoloration that CPR cannot reverse. Rigor mortis is the postmortem stiffening of muscles due to chemical changes after death, which CPR cannot overcome. When both signs are present, it provides definitive evidence that death has occurred, making field resuscitation inappropriate. While either sign alone is a strong indicator, the combination of both is the clearest, most definitive signal to terminate efforts in the field.

Conclusive signs of death in the field are those that indicate resuscitation should not be attempted. Lividity (livor mortis) and rigor mortis are two such signs. Lividity occurs when blood settles in dependent parts after circulation stops, producing a dark discoloration that CPR cannot reverse. Rigor mortis is the postmortem stiffening of muscles due to chemical changes after death, which CPR cannot overcome. When both signs are present, it provides definitive evidence that death has occurred, making field resuscitation inappropriate. While either sign alone is a strong indicator, the combination of both is the clearest, most definitive signal to terminate efforts in the field.