The nurse is monitoring central venous pressure. Which statement is correct regarding central venous monitoring?
1. An increasing trend in central venous pressure may result from fluid building in the lungs.
2. A decreasing trend in central venous pressure may indicate right heart failure.
3. It is better to look at current numbers for central venous pressure monitoring rather than trends.
4. Central venous pressure is a direct measurement of systemic vascular resistance.
An increasing trend in central venous pressure may result from fluid building in the lungs.
Rationale: An increasing trend in central venous pressure may result from fluid building in the lungs. As pressure in the lungs increases, volume in the right heart will increase, which will increase the CVP. Right heart failure would also cause an increasing CVP. It is more accurate to look at trends rather than one CVP reading. CVP is not a direct measurement of systemic vascular resistance.
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