This quick-reference pocket guide offers LPNs/LVNs clear explanations of difficult concepts related to fluid, electrolyte, and acid-base balance. The book describes specific imbalances, their pathophysiologic mechanisms, and various therapies including I.V. fluid replacement, total parenteral nutrition, and blood component therapy. Information is presented in a highly organized format with abundant illustrations. Recurring icons include Red Flag (key findings, risks, complications, and contraindications associated with an imbalance or therapy), Life Stages (age-related variations), and Spotlight (flow charts or illustrations depicting physiologic and pathophysiologic mechanisms).