What is a manifestation of extracellular fluid volume deficit?

Hypotension is a manifestation of extracellular fluid volume deficit because it often results from decreased circulating blood volume within the vascular system. When there is a deficit in extracellular fluid, the body's overall blood volume is reduced, leading to lower blood pressure. This condition can lead to inadequate perfusion of vital organs, resulting in symptoms such as dizziness, fainting, or shock in severe cases. Monitoring blood pressure is crucial in patients suspected to have fluid volume deficits, as hypotension can signal the need for immediate medical interventions to restore appropriate fluid levels and maintain circulation.

In contrast, high blood pressure, increased appetite, and weight gain are not associated with fluid volume deficit. High blood pressure often occurs with excess fluid retention, while increased appetite and weight gain may indicate overhydration or nutritional factors rather than a deficit in extracellular fluid.