A patient presents with symptoms of a condition known as 'orthostatic hypotension.' Which of the following physiological changes is primarily responsible for this condition?
Q1. A patient presents with symptoms of a condition known as 'orthostatic hypotension.' Which of the following physiological changes is primarily responsible for this condition?
Answer: Impaired baroreceptor function
Explanation: Impaired baroreceptor function leads to inadequate blood pressure regulation, resulting in orthostatic hypotension. Incorrect options: increased sympathetic tone would increase blood pressure, not cause orthostatic hypotension; decreased parasympathetic tone would increase heart rate, not cause orthostatic hypotension; increased blood volume would increase blood pressure, not cause orthostatic hypotension.