What action should a patient take if chest pain does not improve after taking nitroglycerin?

When experiencing chest pain that does not improve after taking nitroglycerin, it is essential for the patient to call emergency medical services. This action is critical because persistent chest pain can be a sign of a serious cardiac event, such as a heart attack. Nitroglycerin is often used to relieve angina or chest pain caused by coronary artery disease; however, if the pain continues despite medication, this indicates that the underlying issue may be more severe and requires immediate medical attention.

Prompt intervention can be lifesaving, as it allows for rapid assessment and treatment by healthcare professionals. Delaying or choosing alternative actions, such as waiting to take another dose of nitroglycerin, resting, or taking aspirin without professional guidance, can result in a deterioration of the patient's condition. Thus, recognizing the seriousness of ongoing chest pain and seeking emergency help is the most appropriate and potentially life-saving action.