Nitroglycerin is indicated for which condition?

Nitroglycerin is indicated for which condition?

• A. Acute chest pain or pressure
• B. Hypertension emergencies
• C. Head injury
• D. Hypotension

Answer: (A)

Nitroglycerin works by dilating blood vessels, which lowers the amount of blood returning to the heart (preload) and reduces the heart’s workload. This helps the heart require less oxygen and can also improve blood flow to areas that may be ischemic. Because of this, it’s particularly helpful for acute chest pain or pressure that’s suspected to come from cardiac ischemia (like angina or a heart attack). The other scenarios aren’t appropriate indications: in hypertensive emergencies you’d use agents aimed specifically at rapidly lowering high blood pressure, not primarily to relieve chest pain. In head injury, nitroglycerin is avoided because lowering blood pressure and dilating vessels can worsen brain perfusion issues or increase intracranial pressure. In hypotension, nitroglycerin can drop blood pressure further, which is dangerous.

Nitroglycerin works by dilating blood vessels, which lowers the amount of blood returning to the heart (preload) and reduces the heart’s workload. This helps the heart require less oxygen and can also improve blood flow to areas that may be ischemic. Because of this, it’s particularly helpful for acute chest pain or pressure that’s suspected to come from cardiac ischemia (like angina or a heart attack).

The other scenarios aren’t appropriate indications: in hypertensive emergencies you’d use agents aimed specifically at rapidly lowering high blood pressure, not primarily to relieve chest pain. In head injury, nitroglycerin is avoided because lowering blood pressure and dilating vessels can worsen brain perfusion issues or increase intracranial pressure. In hypotension, nitroglycerin can drop blood pressure further, which is dangerous.