What can indicate that a diver is experiencing shock?

Experiencing shock can manifest through various physical signs, and cool, clammy skin is one of the key indicators. When a person is in shock, their body prioritizes blood flow to vital organs, often resulting in reduced circulation to the extremities. This can lead to the skin feeling cool and sweaty or clammy due to the body's response to stress and potential drop in core temperature.

In contrast, other options do not accurately reflect signs of shock. For instance, a decreased need for oxygen does not correlate with shock, as shock often leads to increased oxygen demand due to systemic stress. An increased heart rate can indeed occur in shock, but it is an indirect indicator rather than a primary sign, and heightened awareness is not typically associated with shock; rather, individuals may experience confusion or altered mental status in this state. Understanding these signs helps divers recognize potential emergencies during their dives, ensuring timely and appropriate responses.