During evaluation of an old man in the outpatient clinic, he states that he has headache which responds to the over-counter medications. He has no medical conditions and takes no medications. Physical examination is normal but his blood pressure is 175/71 mmHg and pulse is 80/ min. CT scan of the head reveals no significant abnormalities. Which of the following age-related changes best explains this patient's blood pressure readings?
A) Decreased diameter of the aortic lumen
B) Decreased stroke volume
C) Increased arterial collagen deposition
D) Increased renal arterial resistance
E) Increased sympathetic tone
Correct Answer:
Verified
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