Which CVP value would most support a diagnosis of hypovolemia?

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Multiple Choice

Which CVP value would most support a diagnosis of hypovolemia?

Explanation:
Central venous pressure reflects right atrial preload. In hypovolemia, preload drops, so CVP is low. Normal CVP is roughly 2–8 cm H2O, so a value of 2 cm H2O sits at the low end of normal and best supports reduced intravascular volume. A CVP of 6 cm H2O is well within normal limits, and 10 or 14 cm H2O indicate higher preload or volume overload, not hypovolemia.

Central venous pressure reflects right atrial preload. In hypovolemia, preload drops, so CVP is low. Normal CVP is roughly 2–8 cm H2O, so a value of 2 cm H2O sits at the low end of normal and best supports reduced intravascular volume. A CVP of 6 cm H2O is well within normal limits, and 10 or 14 cm H2O indicate higher preload or volume overload, not hypovolemia.

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