In non-traumatic non-cardiogenic shock, what is the initial fluid bolus amount?

In non-traumatic non-cardiogenic shock, what is the initial fluid bolus amount?

• A. 500 mL
• B. 1000 mL
• C. 1500 mL
• D. 2000 mL

Answer: (B)

In non-traumatic non-cardiogenic shock the issue is usually a relative lack of circulating volume due to vasodilation and capillary leakage, not a failing heart. The goal is to rapidly increase preload with an isotonic crystalloid to improve stroke volume and perfusion. Starting with a 1-liter fluid bolus provides enough volume to begin raising blood pressure and perfusion without immediately risking fluid overload in a patient who may not tolerate large volumes, especially before reassessment. After giving the initial liter, reassess perfusion indicators—blood pressure, mental status, skin signs, urine output—and, if needed, continue with additional boluses or adjust treatment per protocol. The smaller amount might be insufficient to raise perfusion promptly, while larger amounts on the first pass can pose a higher risk of edema in patients who do not need that much volume immediately or who may have a cardiac component.

In non-traumatic non-cardiogenic shock the issue is usually a relative lack of circulating volume due to vasodilation and capillary leakage, not a failing heart. The goal is to rapidly increase preload with an isotonic crystalloid to improve stroke volume and perfusion. Starting with a 1-liter fluid bolus provides enough volume to begin raising blood pressure and perfusion without immediately risking fluid overload in a patient who may not tolerate large volumes, especially before reassessment. After giving the initial liter, reassess perfusion indicators—blood pressure, mental status, skin signs, urine output—and, if needed, continue with additional boluses or adjust treatment per protocol. The smaller amount might be insufficient to raise perfusion promptly, while larger amounts on the first pass can pose a higher risk of edema in patients who do not need that much volume immediately or who may have a cardiac component.