Why will the nurse monitor the SVO2 in a patient with septic shock?
1. A SvO2 of 65% shows that the oxygen demand of tissues exceeds the oxygen supply.
2. A SvO2 of 95% or above shows normal oxygen supply and demand.
3. A SvO2 of 70% is adequate to deliver oxygen to body organs and tissues.
4. A decrease in the SvO2 shows that more oxygen is returning to the lungs before being metabolized.
3
Rationale 1: This value is normal and indicates a balance.
Rationale 2: A SvO2 of 95% is high, indicating that the cardiac output is insufficient to meet the oxygen demands.
Rationale 3: The SvO2 is a measure of systemic oxygen utilization and an indirect measure of perfusion. The normal SvO2 is 60% to 80%. A SvO2 of 70% is normal, indicating adequate oxygen delivery to body organs and tissues.
Rationale 4: A decline in SvO2 indicates that the demand of the tissues exceeds the oxygen delivery.
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