What is the nitroglycerin dosing regimen for adults?

What is the nitroglycerin dosing regimen for adults?

• A. 0.4 mg sublingual every 3-5 minutes up to 3 doses
• B. 0.4 mg intravenous every 3-5 minutes up to 3 doses
• C. 0.4 mg oral every 3-5 minutes up to 3 doses
• D. 0.04 mg sublingual every 3-5 minutes up to 3 doses

Answer: (A)

Nitroglycerin works quickly to dilate veins and coronary arteries, which reduces the heart’s workload and improves blood flow to relieve chest pain. For adults in the EMS setting, the preferred route is sublingual because it acts fast and bypasses the digestive system. The standard dose is 0.4 mg under the tongue, administered every five minutes as needed, up to a total of three doses. This dosing plan lets you reassess the patient after each dose and stop if symptoms improve or if signs of overdosage appear, such as hypotension. Oral forms are not used in this acute setting due to slower, inconsistent absorption, and intravenous dosing is typically outside EMT scope. A much smaller dose like 0.04 mg would be ineffective.

Nitroglycerin works quickly to dilate veins and coronary arteries, which reduces the heart’s workload and improves blood flow to relieve chest pain. For adults in the EMS setting, the preferred route is sublingual because it acts fast and bypasses the digestive system. The standard dose is 0.4 mg under the tongue, administered every five minutes as needed, up to a total of three doses. This dosing plan lets you reassess the patient after each dose and stop if symptoms improve or if signs of overdosage appear, such as hypotension. Oral forms are not used in this acute setting due to slower, inconsistent absorption, and intravenous dosing is typically outside EMT scope. A much smaller dose like 0.04 mg would be ineffective.