Which of the following describes the typical hemodynamic changes in shock?

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Multiple Choice

Which of the following describes the typical hemodynamic changes in shock?

In shock, reduced venous return to the heart lowers preload, so pressures that reflect filling such as CVP, PAP, and PCWP fall. With less filling, the heart pumps less blood (lower cardiac output). At the same time, renal perfusion drops, so urine output tends to decrease. The pattern of decreased preload pressures together with decreased CO fits the typical hemodynamic response to shock, especially in volume-depleted states. The other patterns imply higher filling pressures or non-shock responses (like increased urine output or low heart rate), which aren’t typical for the common shock presentation.

In shock, reduced venous return to the heart lowers preload, so pressures that reflect filling such as CVP, PAP, and PCWP fall. With less filling, the heart pumps less blood (lower cardiac output). At the same time, renal perfusion drops, so urine output tends to decrease. The pattern of decreased preload pressures together with decreased CO fits the typical hemodynamic response to shock, especially in volume-depleted states. The other patterns imply higher filling pressures or non-shock responses (like increased urine output or low heart rate), which aren’t typical for the common shock presentation.

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