This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Circulation: Biophysics of Pressure, Flow, and Resistance, Subject name: Physiology
[{'content': 'In circulatory biomechanics which of the following is true- \nSelect and explain. \nA. Blood viscosity is increased in anemia, B. Blood viscosity is decreased in polycythemia, C. Cardiac output is increased in anemia, D. Cardiac output is decreased in Beri-Beri', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Cardiac output is increased in anemia o Cardiac output is increased in conditions which cause decrease in peripheral vascular resistanceExerciseAV fistula or shuntSevere anemiaThyrotoxicosisWet beri-beriAbout other optionso Blood viscosity is lowr in anemia and high in polycythemia.", 'role': 'assistant'}]