What should be done for a person in shock?

For someone in shock, administering oxygen and warming them up is the appropriate response because it addresses the critical needs of the body. Shock often indicates inadequate blood flow leading to insufficient oxygen delivery to vital organs. By providing supplemental oxygen, you help ensure that the body's tissues receive the oxygen they require to function, which can be crucial for survival.

Additionally, when a person is in shock, they may experience a drop in body temperature, particularly if they are losing blood. Warming them helps to stabilize their body temperature, combating the effects of shock and supporting overall physiological function. This dual approach of providing oxygen and warmth is vital in managing shock effectively.

The other options do not support the appropriate care for someone in shock. For instance, offering cold water can exacerbate the issue as it can lead to additional complications such as hypothermia or worsen nausea. Leaving the person alone can lead to deterioration of their condition, as they need immediate assessment and care. Providing food is not advisable since shock can impair gastric function and may result in complications, particularly if the person has lost consciousness or is unable to swallow safely.