Final answer:
The statements indicating the need for further teaching for a client with angina pectoris include the intention to switch to electronic cigarettes and the belief that it is best to exercise once a week for an hour. Both of these actions are not recommended for optimal management of angina.
Step-by-step explanation:
The client with angina pectoris needs further teaching if they make the following statements: "I am going to switch to electronic cigarettes." - While switching to electronic cigarettes may reduce exposure to some of the harmful chemicals found in regular cigarettes, it is not a risk-free alternative and still presents significant health risks. It is generally advised for those with coronary heart disease to quit smoking altogether, as this is a much safer option for their condition. "It is best to exercise once a week for an hour." - Regular physical activity can be beneficial for those with angina, but it should be spread throughout the week, not condensed into one session. Current recommendations generally suggest at least 150 minutes of moderate-intensity aerobic exercise a week. Proper disease management for angina includes avoiding smoking, engaging in regular physical exercise distributed throughout the week, and using medication such as nitroglycerin at the onset of chest discomfort.