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Acid-Base Balance and Electrolyte Management

Perhaps the most ubiquitous set of interlinked clinical issues to be addressed in inpatient medicine is fluids, electrolytes, and acid-base balance. Decision making for the first two directly and measurably impacts the latter. Unlike most other critical therapies whose management is tied to a specific skill set and competency, every practitioner is empowered to prescribe and direct fluid and electrolyte management and, secondarily, pH. Downstream consequences in terms of compensation, both pulmonary and renal, may be singularly important for those with preexisting conditions that impact organ function and drive the need for unanticipated monitoring and therapy, including organ support. Therefore, the basics of fluid and electrolyte management are essential to be mastered, as is specific knowledge of the consequences of that prescription to enhance recovery and avoid preventable errors with important sequelae. Accordingly, current different but complementary methods of assessing acid-base balance are presented so that the reader may have a systematic approach to determining pH before intervention as well as after the initiation of fluid and electrolyte therapy.

This review contains 12 figures, 7 tables, and 38 references
Keywords: acid, base, electrolyte disturbances, Henderson-Hasselbach, maintenance, proton, resuscitation, Stewart methodology