Final answer:
Effective teaching is demonstrated when the patient acknowledges the need to quit smoking and reduce alcohol intake to manage hypertension.
Step-by-step explanation:
The nurse determines that teaching has been effective when the patient makes the statement: "I know I need to give up my cigarettes and alcohol." This shows an understanding of the necessary lifestyle modifications for managing hypertension. Lifestyle changes, including quitting smoking and reducing alcohol consumption, can significantly lower the risk of further complications associated with high blood pressure. These modifications, along with a healthy diet, regular exercise, and possible prescribed medications, contribute to hypertension control and reduce the risk of cardiovascular diseases such as heart attacks and strokes.