Australian Dental Council (ADC) Test 2025 – 400 Free Practice Questions to Pass the Exam

The treatment that provides the fastest relief during an angina attack in a dental setting is sublingual administration of glyceryl bi-nitrate. Glyceryl bi-nitrate, commonly known as nitroglycerin, is a potent vasodilator that works quickly to relieve angina symptoms by relaxing the blood vessels. When administered sublingually, it is rapidly absorbed into the bloodstream, providing prompt relief by improving blood flow to the heart and reducing myocardial oxygen demand.

This rapid action is particularly important in a dental setting where an angina attack may occur unexpectedly. Other options, while they may have therapeutic uses, do not offer the same immediate relief as sublingual nitroglycerin. For instance, the oral administration of short-acting barbiturates and intra muscular administration of morphine sulfate do not have the same swift onset of action for chest pain relief. Subcutaneous administration of epinephrine is more commonly used in cases of anaphylaxis rather than for angina. Hence, the choice of glyceryl bi-nitrate effectively caters to the urgent need for rapid treatment during an angina attack.