Normal CVP pressure is what range?

• A. 0-2 mmHg
• B. 6-12 mmHg
• C. 2-6 mmHg
• D. 10-14 mmHg

Answer: (C)

Central venous pressure reflects the pressure entering the right atrium, essentially indicating preload and venous return to the heart. The normal range is about 2 to 6 mmHg, which corresponds to normal right atrial pressure and adequate preload for the right ventricle. If CVP falls below this range, it suggests hypovolemia or reduced venous return; if it rises above, it points to fluid overload, higher right-sided pressures, or impaired right heart function. When interpreting CVP, keep in mind that factors like breathing pattern and positive-pressure ventilation can affect the reading, and measurements are taken with the transducer at the level of the right atrium, typically at end expiration.