This tool estimates the reduction in circulating blood volume based on weight loss. Dehydration causes a disproportionate loss of plasma volume relative to total body water, which is critical for assessing circulatory strain.
Estimated Total Blood Volume:
4900 mL (4.9 L)
Estimated Blood Volume Reduction:
490 mL (0.49 L)
Dehydration primarily reduces plasma volume, which decreases the total volume of blood circulating through your heart and muscles.
Formula: Loss (mL) = (Weight × 70) × (Dehydration % × 0.05)
Loss (mL) = (Weight × 70) × (Dehydration % × 0.05)
Example: A 75kg cyclist losing 3% of their body weight through sweat.
Even a 2% loss in body weight can significantly reduce stroke volume, making the heart work harder to maintain blood pressure.
No, this specifically estimates the fluid lost from the intravascular space (blood vessels) during acute dehydration.
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