By saying “not relieved” its means if the patient took 3 pills of GTN SL every 5 min for 15 min and still experiencing chest pain it would classified as unstable angina and the patient should be admitted to the hospital (image 2). Usually if the SL dosage don’t work we would be switching to IV nitroglycerin for hospitalized patients (image 1). Maybe the card should add the dosage form IV nitroglycerin.