Residual base (BE, BD)

The remaining alkali is the amount of acid or alkali consumed when the blood sample is titrated to pH 7.40 at 38 ° C, the partial pressure of carbon dioxide is 40 mmHg, and the partial pressure of oxygen is 100%, indicating an increase in alkali storage in whole blood or plasma. Or a reduced situation. Acidic acid indicates that there is excess alkali in the blood, and BE is positive; on the contrary, the alkalinity indicates that the alkali in the blood is missing, and BE is negative. Basic Information Specialist classification: Respiratory examination classification: biochemical examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Metabolic acidosis. Normal value: Remaining base (adult): -3-3mmol/L Above normal: Metabolic alkalosis. negative: Positive: Tips: Before taking blood, please explain whether you are taking oxygen. Normal value Whole blood assay Neonatal -10 ~ -2mmol / L (-10 ~ -2mEq / L). Infants -7 ~ -1mmol / L (-7 ~ -1mEq / L). Children -4 to +2 mmol/L (-4 to +2 mEq/L). Adult -3 to +3 mmol/L (-3 to +3 mEq/L). Clinical significance 1. Increase: The negative value of BE in metabolic acidosis is reduced, the positive value of BE in metabolic alkalosis is increased, and the positive value of BE is slightly increased in the case of respiratory acidosis. 2. Reduction: When it is negative, it means that the buffer base is reduced or missing. Low results may be diseases: high metabolic acidosis results may be diseases: metabolic alkalosis precautions 1. Before the blood is drawn, it is necessary to explain whether or not to take oxygen. The blood sample should be isolated from the outside air and sent to the test in time. Arterial blood gas analysis of blood collection sites, generally the radial artery, radial artery, femoral artery and so on. If venous blood is required, the forearm should be placed in warm water at 45 ° C for 20 min to make the venous blood arterial. It is not advisable to use a tourniquet when drawing blood. 2, the use of certain drugs can increase or decrease the pH of the blood, such as the use of sodium bicarbonate, etalic acid, sodium glutamate, phenylbutazone, aspirin, etc. can increase blood pH; use tetracycline, isoniazid , phenformin, ammonium chloride can reduce blood pH. Inspection process Same electrode assay. Not suitable for the crowd no. Adverse reactions and risks no.

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