More than 50 million Americans have hypertension or high blood pressure. Do you know how to prevent it? Test your knowledge with this short quiz. For more information, see the Heart Health Library or talk to your doctor. Select the best answer to each of the following questions. When you’re finished, click the submit button

1 . Foods containing which of the following help prevent high blood pressure?       A.  calcium     B.  potassium     C.  magnesium     D.  all of the above   2 . What section of the United States has the highest rate of hypertension?       A.  northeast     B.  southeast     C.  west     D.  central   3 . How many people are believed to be unaware of their high blood pressure?       A.  1 in 2     B.  1 in 3     C.  1 in 4     D.  1 in 5   4 . How much salt should you consume in one day?       A.  1 teaspoon     B.  2 teaspoons     C.  3 teaspoons     D.  no salt   5 . Risk factors for hypertension include:       A.  weight     B.  sex     C.  family history     D.  all of the above   6 . Which of these causes persistent high blood pressure?       A.  taking birth control pills     B.  smoking     C.  drinking coffee     D.  all of the above   7 . “White coat” hypertension is the tendency of some people to have an increase in blood pressure when:       A.  they are under stress     B.  they visit the doctor     C.  they pay their bills     D.  they eat at a restaurant