What type of shocks should be addressed with a fluid bolus before the administration of push dose pressors?

• A. Hypovolemia and Distributive Shock
• B. Cardiogenic Shock
• C. Neurogenic Shock
• D. Anaphylactic Shock

Answer: (A)

The key idea is that fluids should be given first when the shock is due to low circulating volume, so preload is restored before you use vasopressors. In hypovolemic shock, there’s an actual loss of volume reducing venous return, so a fluid bolus increases preload and improves cardiac output and tissue perfusion, making vasopressors more effective afterward. In distributive shock (such as septic or anaphylactic), widespread vasodilation creates relative hypovolemia; fluids help restore intravascular volume and improve responsiveness to pressors. In contrast, cardiogenic shock centers on the heart’s impaired pumping, and giving large fluid boluses can worsen pulmonary edema and fluid overload, so management focuses more on optimizing cardiac function and cautious vasopressor use. Neurogenic shock is a distributive form, but the guiding principle still emphasizes ensuring adequate intravascular volume when appropriate. Therefore, fluid bolus before push dose pressors is most appropriate for hypovolemia and distributive shock.