What is the normal range for central venous pressure (CVP)?

What is the normal range for central venous pressure (CVP)?

• A. 2-6 mmHg
• B. 8-12 mmHg
• C. 0-2 mmHg
• D. 6-10 mmHg

Answer: (A)

Central venous pressure is a rough measure of right atrial pressure and right-sided preload. At rest, and with the patient lying flat and the transducer zeroed at the level of the right atrium, the normal CVP is about 2 to 6 mmHg. This range reflects normal venous return and right heart filling pressure. Values lower than this suggest low preload or hypovolemia, while values higher indicate increased preload or issues affecting the right heart or intrathoracic pressure. Therefore, the 2–6 mmHg range is the best match for a normal CVP.