Need Help with A and P Project

hi i am doing a project for my A&P 2 class and we have to do patient teaching and were only allowed to use two Internet websites and the rest have to be books could any of you suggest any good books i could use for this project that i could goto my local library and use. like one of the situations are you have just taken a blood pressure reading and it was 240/120. and that the patient is exasperated that his new diet and exercise hasn't lowered the blood pressure much. then the patient turn and says to you and asks what causes high blood pressure and why it is important so important to keep it low. then the patient claims that even though the pressure is high, the patient feels just fine how will you answer the patient. and i have a couple of these to do and I'm not sure what are some good books or sites to go on thanks David medical assistant student.