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 patient Pushpa comes to you in the medicine emergency and you diagnose her to be suffering from severe CHF. You choose a drug 'Z' which is a short term ionotropic agent having selective adrenergic agonistic activity but lacking dopaminergic agonistic activity. What can be 'Z' ? and explain in detail?
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