Final answer:
The patient experiencing relief from pain after taking one sublingual nitroglycerin tablet is an example of symptomatic relief.
Step-by-step explanation:
The patient experiencing relief from pain after taking one sublingual nitroglycerin tablet is an example of symptomatic relief. Symptomatic relief refers to the alleviation of symptoms without addressing the underlying cause. In this case, the nitroglycerin tablet helps to relax the smooth muscles in the coronary vessels, improving blood flow and providing relief from chest pain. It does not address the root cause of the pain, but it provides immediate relief for the patient.