What is the normal value for the PAPI score?

The PAPI score, or the Pulmonary Artery Pressure Index, is a clinical tool used primarily to evaluate pulmonary hypertension and assess right ventricular function in patients, particularly those on ECMO. A normal PAPI score typically falls around the value of 1.0. This score helps to provide an indication of the hemodynamics and overall status of the pulmonary circulation.

A PAPI score of 1.0 suggests adequate pulmonary function and the ability of the right ventricle to manage the pressures experienced, which is critical for maintaining adequate systemic circulation. Higher or lower values can indicate compromised pulmonary function or stress on the heart.

In the context of the provided choices, recognizing that 1.0 is established as the baseline for normal function is essential for interpreting patient data and making informed clinical decisions in ECMO settings. Understanding this score contributes significantly to assessing patient stability and guiding potential interventions.