This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': '1 to 2 mm haemorrhages in skin are known as: \nSelect and explain. \nA. Micro bleed, B. Petechiae, C. Purpura, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Minute 1- to 2-mm hemorrhages into skin, mucous membranes, or serosal surfaces are called petechiae. These are most commonly associated with locally increased intravascular pressure, low platelet counts (thrombocytopenia), or defective platelet function (as in uremia). Ref: Robbins 8th edition Chapter 4.', 'role': 'assistant'}]