Calculating Functional Obsolescence in Cost Approach Regarding a functional obsolescence deficiency that lacks something, the calculation is the difference between the reproduction cost with the curable item and without it, as of the date of appraisal.Note that this is reproduction cost and not replacement cost.Functional obsolescence is the excess cost of adding the item in question, such as an additional bathroom or the new kitchen, to the existing house compared to what it would have cost at the time of construction.Since it is an added item, only the cost new is utilized.unctional obsolescence is the excess cost of adding the item in question, such as an additional bathroom or the new kitchen, to the existing house compared to what it would have cost at the time of construction. Since it is an added item, only the cost new is utilized.
A: Blood oxygen level is measured using pulse oximetry, a noninvasive procedure designed to monitor the delivery of oxygen to peripheral tissue, says Johns Hopkins Medicine. Pulse oximetry uses hemoglobin coloration and blood flow pulsation to measure the blood oxygen level.
Pulse oximetry is a useful tool for assessing oxygen saturation, but it doesn't provide a complete picture of your patient's respiratory status. Understanding what pulse oximetry can and can't do will help you to use this technology wisely.o interpret pulse oximetry values correctly, you need to understand the oxyhemoglobin dissociation curve, which illustrates the relationship between arterial oxygen saturation (for our purposes, SpO 2 or SaO 2) and the amount of oxygen that is dissolved in the blood (partial pressure of oxygen, PaO 2).