Final answer:
Immediate treatments for chest discomfort in a patient with suspected heart attack include administering supplemental oxygen, aspirin, and nitroglycerin. Nitroglycerin can be taken sublingually every 3 to 5 minutes to relieve symptoms, as long as it is not contraindicated by vital signs.
Step-by-step explanation:
Immediate treatments for MI (myocardial infarction, or heart attack) include administering supplemental oxygen, aspirin, and nitroglycerin. Nitroglycerin can be administered sublingually (under the tongue) to facilitate its absorption. This medication helps to dilate the coronary arteries and improve blood flow to relieve chest discomfort. The recommended frequency for taking nitroglycerin sublingually is every 3 to 5 minutes, as long as it is not contraindicated by vital signs.