In cases of hypovolemic shock, which of the following could be a possible cause?

Hypovolemic shock occurs when there is a significant reduction in effective circulating blood volume, leading to inadequate perfusion and oxygen delivery to the tissues. One of the most common causes of this condition is acute blood loss, which may result from trauma, surgical procedures, gastrointestinal bleeding, or other medical conditions that lead to a sudden and substantial decrease in blood volume. This loss triggers a cascade of physiological responses aimed at maintaining blood pressure and perfusion to vital organs, but if the volume loss is severe, it can lead to critical complications.

In contrast, hypertension generally indicates a high blood volume or increased vascular resistance rather than a lack of volume, normal blood volume suggests stability and sufficient perfusion, and fluid overload results in excess fluid rather than a deficit. Therefore, acute blood loss stands out as a direct contributor to hypovolemic shock due to its ability to drastically reduce available blood volume.