IHS: Exam 3: ABG 100% REVISION 2023//2024
Acid • a molecule that can act as a proton (H+) donor. • Strong acid readily and irreversible gives up an H+, and a strong base avidly binds H+ Base • a molecule that can act as a proton acceptor. • A weak acid or base reversible donates H+ or reversible binds H+. Acidemia blood pH < 7.35 Acidosis is the process that lowers pH - H+ concentration in blood is increased Alkalemia blood pH > 7.45 Alkalosis is the process that raises pH - Decrease in H+ concentration Base Excess amount of strong acid or strong base required to return 1 L of whole blood exposed in vitro to a PaCO2 of 40 mmHg to a pH of 7.4 Normal base excess is ______. 0 Base deficit: < 0 metabolic acidosis Base excess: > 0
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