Florida State Paramedic Practice Exam

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What condition is characterized by skin pallor?

Vasodilation
Vasoconstriction
Hyperemia
Dehydration

The correct answer is: Vasoconstriction

The condition characterized by skin pallor is typically associated with vasoconstriction. When blood vessels constrict, blood flow to the skin's surface is reduced, leading to a decrease in color or a pale appearance. This pallor is a physiological response that can occur in various situations, such as in response to cold temperatures or during shock, as the body conserves blood flow for vital organs. Vasodilation, on the other hand, increases blood flow to the skin, causing a reddening effect rather than pallor. Hyperemia, which refers to an increased blood flow to a particular area, would also not result in pallor, but rather a warm and flushed appearance. Dehydration may affect skin turgor and overall skin health, but it is not directly responsible for the pallor effect associated with reduced blood flow caused by vasoconstriction. Therefore, the relationship between reduced blood flow, skin pallor, and vasoconstriction clearly supports why the correct response is associated with this condition.