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The formula for base deficit is as follows: Base excess = 0.02786 X pCO2 X 10^(pH - 6.1) + 13.77 X pH - 124.58
Replacing pK = 6.1, and [CO 2] = 0.03 * pCO 2, and removing the logarithms to get. HCO 3 = 0.03 * pCO 2 * 10 (pH - 6.1) In conjunction with the Siggaard-Anderson equation: B.E. = 0.9287 (HCO 3 - 24.4 + 14.83 (pH - 7.4)) or. B.E. = 0.9287 * HCO 3 + 13.77 * pH - 124.58.
Jun 12, 2016 · Base excess (BE) The base excess is another surrogate marker of metabolic acidosis or alkalosis : A high base excess (> +2mmol/L) indicates that there is a higher than normal amount of HCO 3 – in the blood, which may be due to a primary metabolic alkalosis or a compensated respiratory acidosis.
Nov 3, 2020 · OVERVIEW. base excess is used as an indicator of the degree of metabolic disturbance. BICARBONATE. The problem with bicarbonate. Bicarbonate levels are not an ideal indicator of either metabolic or respiratory components of acid-base disturbance because it is affected by both.
BE = (HCO3 - 24) + (pH - 7.4) * 2.3. This formula calculates the Base Excess (BE), a measure of the excess or deficit of bicarbonate in the body. Base Excess Categories. Calculation Examples. Calculation Methods. Evolution of Base Excess Calculation. Limitations of Base Excess Calculation.
Estimation. Base excess can be estimated from the bicarbonate concentration ( [HCO 3− ]) and pH by the equation: [4] with units of mEq/L. The same can be alternatively expressed as. Calculations are based on the Henderson-Hasselbalch equation: Ultimately the end result is: Interpretation. Base excess beyond the reference range indicates.
May 31, 2022 · BB = HCO−3 + A−. The BB considers the non-carbonic buffers and is theoretically CO 2 -independent. Unfortunately, a physiologic inter-subject variability due to different non-carbonic buffer concentrations was noticed [ 5 ].
