You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A person comes into your ER room with a very weak pulse after a suffering a heart attack. You suspect: and explain in detail?
D:  A very weak pulse shows that the heart is slowly ceasing to function as a result of pumping too hard.
A: The patient should not be sent home; close observation is necessary.
B: This stage is a life-threatening stage as the heart could tire itself out and stop functioning.
C: An early stage of shock shows a rapid, bounding pulse.