Which medication is used as a bridge to an IV nitroglycerin infusion in the management of pulmonary edema?

Which medication is used as a bridge to an IV nitroglycerin infusion in the management of pulmonary edema?

• A. Nitroglycerin sublingual as bridge to IV nitroglycerin infusion
• B. Furosemide IV
• C. Oxygen therapy alone
• D. Morphine sulfate

Answer: (A)

In acute pulmonary edema management, you want rapid reduction of left-sided filling pressures to relieve pulmonary congestion. Using a fast-acting nitrate by the sublingual route provides immediate venodilation, lowering preload and improving dyspnea while you set up an IV nitroglycerin infusion. Sublingual nitroglycerin acts within minutes and has a short duration, making it ideal as a temporary measure before the IV infusion is ready and running. This bridge ensures continuous vasodilatory effect without waiting for IV therapy to commence. Furosemide IV is important for removing excess fluid, but its onset is not as rapid for immediate hemodynamic relief, and it doesn’t provide the quick preload reduction needed during the transition to IV nitro. Oxygen therapy helps with hypoxemia but doesn’t directly address the elevated filling pressures. Morphine has fallen out of favor for pulmonary edema due to limited benefit and potential harms like respiratory depression; it does not serve as a bridge to IV nitroglycerin.

In acute pulmonary edema management, you want rapid reduction of left-sided filling pressures to relieve pulmonary congestion. Using a fast-acting nitrate by the sublingual route provides immediate venodilation, lowering preload and improving dyspnea while you set up an IV nitroglycerin infusion. Sublingual nitroglycerin acts within minutes and has a short duration, making it ideal as a temporary measure before the IV infusion is ready and running. This bridge ensures continuous vasodilatory effect without waiting for IV therapy to commence.

Furosemide IV is important for removing excess fluid, but its onset is not as rapid for immediate hemodynamic relief, and it doesn’t provide the quick preload reduction needed during the transition to IV nitro. Oxygen therapy helps with hypoxemia but doesn’t directly address the elevated filling pressures. Morphine has fallen out of favor for pulmonary edema due to limited benefit and potential harms like respiratory depression; it does not serve as a bridge to IV nitroglycerin.