Which of the following interventions is often initiated to manage chest pain in ACS patients?

Nitroglycerin administration is a key intervention for managing chest pain in patients experiencing Acute Coronary Syndrome (ACS). Nitroglycerin is a nitrate that works by dilating blood vessels, which reduces the heart's workload and improves blood flow to the heart muscle. When patients present with chest pain indicative of ACS, administering nitroglycerin can alleviate angina symptoms quickly by decreasing myocardial oxygen demand and helping to restore perfusion to ischemic areas of the heart.

This rapid action makes nitroglycerin particularly valuable in acute settings, where swift relief of symptoms can prevent further cardiac damage. Additionally, nitroglycerin can be administered in various forms, including sublingual tablets or sprays, allowing for immediate and effective treatment.

Other interventions, such as physical therapy, antibiotic therapy, or psychotherapy, are not appropriate as initial management strategies for acute chest pain due to ACS. Physical therapy is generally more relevant in the recovery phase after cardiac events, while antibiotics are used for bacterial infections rather than coronary syndromes. Psychotherapy may be useful in addressing the psychological impacts of ACS but does not contribute to the acute management of chest pain.