Final answer:
Further instruction on NRT delivery systems is needed when the patient mentions monthly injections, as nicotine replacement therapy does not include injections.
Step-by-step explanation:
The patient should receive further instruction about available nicotine replacement therapy (NRT) delivery systems when making the statement "I should schedule appointments for my monthly injections at the end of the month." Nicotine replacement therapy offers various forms of administration including chewing gum, lozenges, skin patches, and inhalers, but not injections. Such products are designed to diminish the withdrawal symptoms by providing controlled doses of nicotine without the harmful effects of tobacco smoke.
Lozenges should indeed be placed in the mouth until they dissolve, and it's important to rotate sites when applying patches to prevent skin irritation. When using an inhaler, exhaling fully before placing lips around the mouthpiece is also the correct method. Therefore, the concept of monthly injections does not apply to current NRT options and indicates a need for further teaching.