Emergency Medical Technician (EMT) Practice Test

What is the typical dosage of nitroglycerin?

1. 0.2 mg

2. 0.4 mg

3. 0.6 mg

4. 0.8 mg

The correct answer is: 0.4 mg

The typical dosage of nitroglycerin for the management of conditions such as angina or heart failure is 0.4 mg. This dosage is commonly administered sublingually (under the tongue) for rapid absorption and effect. Nitroglycerin works by dilating blood vessels, which can help alleviate chest pain by reducing the workload on the heart and improving blood flow through the coronary arteries. Administering 0.4 mg is considered standard practice in emergency situations, providing an effective balance between relief of symptoms and safety. Other dosages, such as 0.2 mg, 0.6 mg, or 0.8 mg, may not align with usual medical guidelines or dosing protocols established for nitroglycerin use, addressing the need for immediate relief while minimizing potential adverse effects associated with higher dosages.