Which set of signs is most consistent with hypovolemic shock?

• A. High blood pressure, tachycardia, cool skin, and rapid pulse
• B. Low blood pressure, bradycardia, warm skin, and slow pulse
• C. Low blood pressure, tachycardia, cool skin, and rapid, weak pulse
• D. Normal blood pressure with warm skin

Answer: (C)

Hypovolemic shock occurs when a significant amount of blood or fluids is lost, reducing circulating volume and impairing tissue perfusion. The body responds by trying to maintain blood flow to vital organs: heart rate increases to boost cardiac output, and peripheral vessels constrict to preserve blood for essential areas. This combination leads to low blood pressure, tachycardia, cool and clammy skin from vasoconstriction, and a rapid yet weak pulse due to the drop in stroke volume.

The set of signs that fits most with hypovolemic shock is low blood pressure, tachycardia, cool skin, and a rapid, weak pulse. The other patterns don’t align with the physiology: high blood pressure wouldn’t be expected with significant volume loss; bradycardia with warm skin points toward a different shock type or a late, atypical presentation; normal blood pressure with warm skin contradicts the reduced perfusion characteristic of hypovolemia.