Inhaltsangabe
ACID-BASE BALANCE presents a difficult subject in an innovative and easy to understand format. Complex mathematical formulas are replaced by clear color graphics. The pulmonary and renal roles in hydrogen ion regulation are presented in a balanced approach. Electrolyte balance is presented in clear, concise terms, with illustrations. The book contains 127 pages, with 53 illustrations, 43 of which are in color.
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INTRODUCTION
Acid-base balance has earned a reputation as a difficult subject to understand. This should not be the case. Presented in a logical fashion, with proper attention paid to the basic physiologic and chemical principles involved, acid-base balance should in fact be quite easy to master. This book attempts to "demystify" the subject, an understanding of which is a necessity for those who practice in the critical care setting.
The text is divided into three sections. Section I deals with the basic chemistry and physiology of acid-base balance. Clinical acid-base disturbances are discussed in Section II. Finally, the relationship between acid-base homeostasis and electrolyte balance is described in Section III.
The emphasis in Section I is on buffer systems--what they are and how they work. The dynamic nature of equilibrium systems and their relationship to buffers is also discussed. Pulmonary and renal control of plasma carbon dioxide and bicarbonate is explained. An understanding of topics discussed in Section I provides a foundation for mastery of the material in Section II, the clinical acid-base disturbances.
Four basic derangements of acid-base balance are discussed in Section II (metabolic and respiratory acidosis and alkalosis). Illustrations are used to clarify the underlying processes responsible for each condition. The synergistic action of the kidney and lung in the repair of acid-base disturbances is stressed.
Electrolyte disturbances associated with acid-base derangement are discussed in Section III. Here the focus is on primary and secondary deficiencies in potassium and chloride, usually seen in metabolic alkalosis.
This text focuses on the "basic science" of acid-base homeostasis, the chemistry and physiology involved in maintaining a stable plasma hydrogen ion concentration. As such, it cannot, and indeed should not, serve as a definitive guide for treatment of clinical acid-base and electrolyte disturbances. Many excellent texts are available for this purpose. It is hoped, however, that an understanding of the material presented here will provide those who care for patients suffering acid-base disturbances with a clearer focus on the subject, resulting in more effective treatment.
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