What is the maximum number of nitroglycerin doses allowed if symptoms persist?

What is the maximum number of nitroglycerin doses allowed if symptoms persist?

• A. 3
• B. 2
• C. 4
• D. 5

Answer: (A)

The main idea is the safe, limited use of nitroglycerin in EMS for chest pain. In typical BLS protocols, nitroglycerin is given as 0.4 mg sublingual every 5 minutes, and you may repeat this up to three doses total if the patient remains a candidate (adequate blood pressure, no contraindications). The reason for the cap is that nitroglycerin lowers blood pressure and can cause dizziness or fainting; after three doses, you reassess and contact medical control for further orders or arrange transport rather than giving more in the field. So, the maximum number of doses you can administer is three. If symptoms persist after the third dose, you should seek medical control guidance and proceed with transport.

The main idea is the safe, limited use of nitroglycerin in EMS for chest pain. In typical BLS protocols, nitroglycerin is given as 0.4 mg sublingual every 5 minutes, and you may repeat this up to three doses total if the patient remains a candidate (adequate blood pressure, no contraindications). The reason for the cap is that nitroglycerin lowers blood pressure and can cause dizziness or fainting; after three doses, you reassess and contact medical control for further orders or arrange transport rather than giving more in the field. So, the maximum number of doses you can administer is three. If symptoms persist after the third dose, you should seek medical control guidance and proceed with transport.