Which of the following symptoms is associated with shock?

Increased heart rate is a significant symptom associated with shock. When the body experiences shock, which is a critical condition where there is insufficient blood flow to the organs, the heart compensates by pumping faster to maintain blood circulation and oxygen delivery to vital tissues. This heightened heart rate, known as tachycardia, is an essential physiological response as the body attempts to counteract the reduced blood volume or pressure.

Other symptoms that may accompany shock include low blood pressure, rapid breathing, weakness, and confusion. The body's response aims to stabilize its function despite the ongoing stressor causing the shock. While improved circulation, rash or skin lesions, and joint pain may indicate other medical conditions, they do not typically define or indicate shock.