A 56-year-old black man presents to the clinic for a routine physical examination. He has not seen a physician for 10 years. On arrival, he is noted to have a blood pressure of 160/90 mm Hg. C . What...

A 56-year-old black man presents to the clinic for a routine physical examination. He has not seen a physician for 10 years. On arrival, he is noted to have a blood pressure of 160/90 mm Hg.

1. 
   
   C
   . What are some of the important complications of hypertension?


2. 
   
   D
   . What are some causes of hypertension?