Under the 1+1 rule for nitroglycerin administration via an inhaler device, how many administrations are allowed?

Under the 1+1 rule for nitroglycerin administration via an inhaler device, how many administrations are allowed?

• A. Two administrations
• B. One administration
• C. Three administrations
• D. Four administrations

Answer: (A)

The idea behind the 1+1 rule is to allow rapid relief of chest pain while maintaining safety by limiting nitroglycerin to two administrations. Start with one administration, then reassess after a short interval (typically about five minutes) and check that the patient’s blood pressure is still adequate. If pain continues and the blood pressure remains stable, you may give a second administration. After that, do not give more without medical control. This limit helps reduce the risk of hypotension and other adverse effects while still offering prompt treatment.

The idea behind the 1+1 rule is to allow rapid relief of chest pain while maintaining safety by limiting nitroglycerin to two administrations. Start with one administration, then reassess after a short interval (typically about five minutes) and check that the patient’s blood pressure is still adequate. If pain continues and the blood pressure remains stable, you may give a second administration. After that, do not give more without medical control. This limit helps reduce the risk of hypotension and other adverse effects while still offering prompt treatment.