<s>[INST] My mom is in stage 4 lung cancer with metastates to her brain.  Her pain has become bad and they gave us an "emergency kit for the future, as she approaches death.  How do u know the difference between "an emergency" and treating the pain she is currently feeling [/INST] Thanks for your question on Chat Doctor. I can understand your situation and problem. End stage lung cancer with brain metastases carry very bad prognosis. In her case emergency should be considered when1. She becomes unconscious and not responding to pain or verbal command.2. She is Chat Doctor.  3. Her chest movements are diminished and hardly taking 1-2 deep breaths like gasping.4. If you can not feel pulse on both arms.Above-mentioned conditions are considered as emergency and death can happen at any moment. And when she is telling pain without above-mentioned conditions than you van give her painkillers. </s>