Blood Pressure Measurements in the ICU: Trust ONLY the MAP in Oscillometric Devices!

Full disclosure. I did not learn this until I was a fellow in Critical Care Medicine. It is not widely taught. Do not feel bad that you did not know this. All I ask is for your help to share this with others so we all speak the same language and do the best for our patients.
What are the normal sounds you hear with the "old fashioned"/auscultatory method of taking a patients blood pressure?
Those sounds define the systolic blood pressure and diastolic blood pressure respectively.
Then you do math and could calculate the mean arterial pressure (MAP) by using the formula of (2xDBP)+SBP/3 but there are a number of different ways to derive the MAP.
Does the BP cuff you have in the ICU, hospital or throughout the majority of doctor offices have ears? Well if that's the case, you CANNOT assume that the SBP and DBP provided by these devices are exact.
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