Are all dosage forms of Nitroglycerin suitable for aborting acute angina attack?

Following concerns:

-Are all dosage forms of Nitroglycerin suitable for aborting acute angina attack?

-Question 2 refers to multiple drug classes that are used for prophylaxis.Discuss more than just beta blockers.

-Monitoring parameters are not discussed. You only listed the side effects. How does a healthcare professional objectively know the medication is benefiting or harming the patient?