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 Which of the following is category 3 in Maastricht classification of donation after cardiac death? and explain in detail?
Maastricht Classification for Donation after Circulatory Death (DCD) Donors Category Description (DRACUIa) 1 Dead on arrival at hospital 2 Resuscitation attempted without success 3 Awaiting cardiac arrest after withdrawal of suppo (Most DCD donors from Category 3) 4 Cardiac arrest while brain dead 5 Cardiac arrest & Unsuccessful resuscitation in hospital Mn: DRACULa