This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Cause of odema \nSelect and explain. \nA. Decreased plasma protein concentration, B. Increased lymph flow, C. Increased ECF, D. Increased plasma proteins concentration', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref.robbins 8/e 112; 7/e 120- 121;9/e p114 Capillary blood contains a decreased quantity of colloids (protein-white circles) due to either decreased hepatic synthesis of these proteins or increased protein loss through the kidney or gastrointestinal tract. ... With decreased production of albumin the plasma colloidal osmotic pressure decreases and edema occurs.', 'role': 'assistant'}]