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: Physiology
[{'content': "Which scientific principle is the basis of the thermodilution method used in the measurement of cardiac output \nSelect and explain. \nA. Hagen-poiseuille principle, B. Bernoulli's principle, C. Stewart-hamilton principle, D. Universal gas equation", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Thermodilution is an indicator dilution technique. In indicator dilution techniques cardiac output is called using stewart - Hamilton equation.\n\n\nCardiac output is equal to the amount of indicator injected divided by its average concentration in arterial blood after a single circulation through the heart, called as stewart Hamilton principle.', 'role': 'assistant'}]