This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Platelet Disorders, Subject name: Medicine
[{'content': 'Storage temperature of platelet is - \nSelect and explain. \nA. -4degC, B. + 4 deg C, C. -20degC, D. + 20-24deg C', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' +20-24 degress Celsius o Platelets are stored at room temperatures because cold induces clustering of Von Willebrand factor receptors on the platelet surface. All cells are more metabolically active at room temperatures so platelets are stored in bags that allow oxygen and carbon dioxide gas exchange. Citrate is added to prevent clotting and dextrose is added as energy source.", 'role': 'assistant'}]