How is nitroglycerin usually given by the EMT?

• A. Orally
• B. Intravenously
• C. Sublingually
• D. Inhalation

Answer: (C)

Nitroglycerin is given sublingually because this route delivers the medicine quickly into the bloodstream by absorbing through the tissue under the tongue, bypassing the digestive system and liver. That bypass allows a rapid onset—typically a matter of minutes—which is crucial for promptly relieving angina in the field. Other routes are slower or less reliable in an emergency: swallowing it orally slows and variably reduces absorption; giving it intravenously requires IV access and is not routinely done by the EMT in most prehospital protocols; inhalation isn’t a standard method for nitroglycerin in this setting. So the sublingual tablet or spray is the preferred, practical method for EMTs to administer nitroglycerin. Always ensure the patient is able to cooperate, monitor blood pressure, and be aware of contraindications with certain medications.