Question

What conditions make PAOP an inaccurate estimate of LVEDV?

1) Quantitative measures of intravascular volume status
2) SVV formula
3) How to interpret SVV
4) Cannot be fixed

Answer 1

PAOP can be an inaccurate estimate of LVEDV due to quantitative measures of intravascular volume status, the SVV formula, and the interpretation of SVV.

Step-by-step explanation:

PAOP (pulmonary artery occlusion pressure) is often used as an estimate of left ventricular end-diastolic volume (LVEDV), but there are certain conditions that can make it an inaccurate estimate.

1. Quantitative measures of intravascular volume status: PAOP can be affected by changes in intravascular volume, such as volume overload or dehydration.
2. SVV (stroke volume variation) formula: SVV is a calculation used to assess fluid responsiveness, and if there is significant variation in stroke volume, it can affect the accuracy of PAOP as an estimate of LVEDV.
3. Interpretation of SVV: SVV is interpreted based on changes in stroke volume during mechanical ventilation, and errors in interpreting SVV can lead to inaccurate estimation of LVEDV.

These conditions can affect the accuracy of PAOP as an estimate of LVEDV, and it is important to consider these factors when using PAOP in clinical practice.