Final answer:
The client statement that indicates a need for further teaching is the option that suggests taking 2-3 tablets at once for severe pain.
Step-by-step explanation:
The client statement that indicates a need for further teaching is Option B) "I can take 2-3 tablets at once if I have severe pain."
This statement is incorrect because sublingual nitroglycerin should be taken one tablet at a time, with a maximum of 3 tablets 5 minutes apart. The client should wait for 5 minutes after taking a tablet and assess if their pain improves before taking another tablet. Taking 2-3 tablets at once can lead to a sudden and severe drop in blood pressure, which can be dangerous.
The correct approach to taking sublingual nitroglycerin is to rest briefly after taking 1 tablet, call the doctor if pain continues after 3 tablets 5 minutes apart, and keep the medication in the dark bottle to protect it from light.