Chapter 5 of 62
Fluid Science & Indications
IV Solution Classifications
IV solutions are classified by their tonicity relative to blood plasma. Understanding each type is critical for selecting the appropriate solution for clinical scenarios.
Key Points
- Isotonic 0.9% Sodium Chloride (Normal Saline): First-line hydration fluid, compatible with most additives, no fluid shift between compartments
- Balanced Crystalloids (Lactated Ringer's): Contains sodium, potassium, calcium, lactate; useful for electrolyte support; avoid in severe renal dysfunction
- Dextrose-Containing Solutions: Provide glucose substrate; monitor glucose in diabetics; risk of rebound hypoglycemia if misused
Module Progress2 of 3 chapters