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Chapter 21: Problem 55

The nurse is preparing to monitor the client's central venous pressure. Which position would provide the most reliable measurement of the CVP? A. Supine B. High Fowler's C. Left Sims' D. Prone

Short Answer

Expert verified
Answer: The most reliable position for obtaining accurate Central Venous Pressure (CVP) measurements is the supine position. In this position, the patient's head and chest are aligned horizontally, minimizing the effects of gravity and providing the most accurate and consistent CVP readings.

Step by step solution

01

Understand Central Venous Pressure (CVP)

CVP is the pressure within the thoracic portion of the vena cava and indicates the amount of blood returning to the heart and the ability of the heart to pump the blood back into the arterial system. It's an essential measurement of a client's right ventricle, right atrial, and overall cardiovascular function.
02

Option A: Supine Position

In the supine position, the patient lies flat on their back with their head and chest at the same level. This position aligns the heart and the vena cava in a horizontal plane, which eliminates the effects of gravity on the pressure measurements. As a result, the CVP reading is more accurate and consistent.
03

Option B: High Fowler's Position

In the High Fowler's position, the patient sits with their head elevated at an angle between 60-90 degrees. Although this position can be comfortable for the client, it's not ideal for measuring CVP due to the effect of gravity on the blood within the central venous system, which can lead to inaccurate measurements.
04

Option C: Left Sims' Position

In the Left Sims' position, the patient lies on their left side with their right leg flexed, and their left arm is placed behind their back. This position is primarily used for procedures like enemas and certain examinations but is not suitable for obtaining accurate CVP measurements.
05

Option D: Prone Position

In the prone position, the patient lies face down. This position can be challenging for clients with breathing difficulties and is not suitable for measuring CVP as it does not allow for proper alignment of the vena cava with the heart.
06

Conclusion

The most reliable position for obtaining accurate Central Venous Pressure (CVP) measurements is the supine position (Option A). In this position, the patient's head and chest are aligned horizontally, minimizing the effects of gravity and providing the most accurate and consistent CVP readings.

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