Which of the following is not a symptom of shock?

High blood pressure is not a symptom of shock because, during shock, the body typically undergoes physiological changes that lead to a decrease in blood pressure. Shock occurs when there is insufficient blood flow to meet the body's needs, often resulting in a weakened cardiovascular system. This condition can cause symptoms such as rapid heart rate (fast pulse), cool and clammy skin due to vasoconstriction, and confusion or altered mental state as the brain is deprived of adequate oxygen and nutrients. Thus, the presence of high blood pressure would be inconsistent with the typical physiological responses observed in a person experiencing shock.