Control of Oxygen Consumption

The control of Vo2 is important in restoring the balance of oxygen supply and demand to tissues. A hyperadrenergic state results from the compensatory response to shock, physiologic stress, pain, and anxiety. Shivering frequently results when a patient is unclothed for examination and then left inadequately covered in a cold resuscitation room. The combination of these variables increases systemic oxygen consumption. Pain further suppresses myocardial function, thus impairing D o2 and Vo2.15 Providing analgesia, muscle relaxation, warm covering, anxiolytics, and even paralytic agents, when appropriate, decreases this inappropriate V o2. It is also important to provide appropriate anesthesia/analgesia for invasive procedures, since this is many times inappropriately forgotten in the haste of expedient intervention.

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