Certified Registered Nurse Anesthetist (CRNA) Practice Exam

What is the normal range for right arterial pressure (RAP)?

1. 0-2 mmHg

2. 4-8 mmHg

3. 10-12 mmHg

4. 12-15 mmHg

The correct answer is: 4-8 mmHg

The normal range for right atrial pressure (RAP) is typically between 4 to 8 mmHg. This range reflects the pressure within the right atrium when the heart is in a relaxed state, allowing for accurate assessment of preload and overall cardiovascular function. Maintaining this pressure range is vital for effective heart performance and adequate filling of the right ventricle, which influences cardiac output and systemic circulation. Elevated pressures above the normal range can indicate various conditions such as heart failure, volume overload, or obstructive pathologies, while values below the normal range may suggest hypovolemia or decreased venous return. Understanding this normal range is essential for CRNAs when monitoring patients, especially during surgery or in critical care settings, as it plays a crucial role in patient management and anesthetic considerations.