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 What would be the first line of treatment is a patient develops ventricular fibrillation after intravenous injection of potassium chloride - and explain in detail?
If the patient is in ventricular fibrillation, one defibrillation attempt (2 J/kg) should be administered. If the rhythm does not conve, the patient should be rewarmed to 30degC (86degF) before defibrillation attempts are repeated. Supplemental oxygenation is always warranted, since tissue oxygenation is affected adversely by the leftward shift of the oxyhemoglobin dissociation curve,this is the case of hypothermic shock. ref:harrison&;s principles of internal medicine,ed 18,pg no 167