Intravenous Fluids (IVF)

Intravenous Fluids (IVF)

  • Definition: Large-volume injections intended to be administered by intravenous infusion, designed to deliver fluids and nutrients directly into the bloodstream.

  • Composition: Sterile solutions of simple chemicals such as sugars (e.g., glucose), amino acids, or electrolytes (e.g., sodium, potassium). These materials are chosen for their compatibility with the circulatory system and their ability to be readily assimilated by the body.

  • Preparation Standards: Prepared with Water for Injection (WFI) according to United States Pharmacopeia (USP) standards, ensuring that they are pyrogen-free and safe for use.

  • Purposes:

    • Fluid Replacement: To replenish lost fluids in patients experiencing dehydration due to various causes (e.g., illness, surgery).

    • Electrolyte Balance Restoration: Restoring essential electrolytes is critical for maintaining cellular function, nerve transmission, and muscle contraction.

    • Supplementary Nutrition: Providing nutrients to patients who cannot consume food orally or have increased nutritional requirements.

    • Drug Administration: Acting as vehicles for administering other drug substances and enabling total parenteral nutrition (TPN) when patients are unable to eat or absorb nutrients.

  • Types of Preparations:

    • LARGE VOLUME PARENTERALS (LVP):

      • IV fluids with or without additives, specifically intended for intravenous infusion.

      • Contain single-dose injections ranging from 100 mL to 1000 mL.

      • Packaged in containers with a capacity of 100 mL to 1000 mL.

      • Commonly utilized mini-type infusion containers include 250 mL capacity and partial fills of 100 mL for drug solutions meant for the “piggyback” technique, where a secondary medication is delivered via the same IV line.

    • SMALL VOLUME PARENTERALS (SVP):

      • Single-dose IV injections with volumes of less than 100 mL.

      • Includes 50 mL partial fills for drugs used in “piggyback” infusions, which deliver therapy over a short duration, thus allowing rapid administration of medications.

      • Can also consist of IV push preparations that are administered quickly over a short time frame, making them suitable for medications requiring rapid effects.

    • UNIT DOSE INJECTIONS:

      • Parenteral preparations that are contained in single-dose presentations, ready-to-administer and typically aspirated in pre-filled syringes.

      • These offer convenience and safety, reducing the risk of dosage errors and contamination during preparation.