Search results
Jun 12, 2016 · 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. A low base excess (< -2mmol/L) indicates that there is a lower than normal amount of HCO 3 – in the blood, suggesting either a primary metabolic ...
Feb 15, 2021 · The base excess is the amount of strong acid that is required to return a patient's sample to a pH of 7.4, pCO₂ to 40mmHg and temperature to 37°. Normal Range. -2 to +2. Elevated Base Excess. A base excess greater than +2 suggests the presence of metabolic alkalosis. Causes of Elevated Base Excess.
May 31, 2022 · Base excess can either be expressed for whole blood—BE(B), which does not consider the interaction of blood with the interstitial fluid, or for the entire extracellular fluid—BE(ecf), also called standard BE (SBE).
Definition. Base excess is defined as the amount of strong acid that must be added to each liter of fully oxygenated blood to return the pH to 7.40 at a temperature of 37°C and a pCO 2 of 40 mmHg (5.3 kPa). [2] . A base deficit (i.e., a negative base excess) can be correspondingly defined by the amount of strong base that must be added.
Base excess of extracellular fluid is defined as the titratable base of extracellular fluid. Base excess in blood, c Base (B), which was defined before c Base (ecf), is also in use, and this is the titratable base of whole blood. Both are titrated to pH = 7.40 and p CO 2 = 40 mmHg (5.3 kPa) at T = 37.0 °C (98.6 °F).
Base excess (BE) refers to the difference between the observed and the normal buffer base concentration or, expressed differently, the amount of acid or base required to return the pH to 7.4 in the setting of a normal Paco2. 124 The BE is commonly derived from nomograms.
They defined base excess as the amount of strong acid (in mmol/L) that needs to be added in vitro to 1 liter of fully oxygenated blood in order to return the sample to standard (normal) conditions (pH 7.40, p CO 2 40 mmHg and temperature 37 °C.)
