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Related Concept Videos

One-Compartment Model: IV Infusion01:09

One-Compartment Model: IV Infusion

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Intravenous (IV) infusion is often utilized when continuous and controlled drug delivery is necessary, such as during surgery or in the treatment of chronic diseases. This method offers numerous advantages, including immediate drug action, precise control over dosage, and bypassing the first-pass metabolism.
The one-compartment model for IV infusion uses mathematical equations to describe the rate of change in drug quantity in the body. At steady-state or infusion equilibrium, the drug input...
669
Two-Compartment Open Model: IV Infusion01:15

Two-Compartment Open Model: IV Infusion

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A two-compartment model is a vital tool in pharmacokinetics, providing an essential understanding of drug behavior, especially for those administered via zero-order intravenous infusion. This model outlines two compartments: the central compartment, where elimination occurs, and the peripheral compartment.
The model illustrates the decrease in plasma drug concentration from the central compartment with a specific equation. It shows that under steady-state conditions, the drug's input rate...
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Routes of Drug Administration: Parenteral01:25

Routes of Drug Administration: Parenteral

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The administration of drugs via parenteral routes allows for direct drug introduction into the systemic circulation, resulting in high bioavailability because the medication bypasses the harsh conditions of the gastrointestinal tract and hepatic metabolism.
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
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IV Infusion to Oral Dosing: Conversion Methods01:28

IV Infusion to Oral Dosing: Conversion Methods

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The development of extended-release formulations has facilitated the transition from intravenous to oral medication, offering a more convenient and patient-friendly approach to drug administration. This transition, however, requires careful management to ensure that therapeutic drug levels are maintained, preserving efficacy and avoiding adverse effects. Understanding pharmacokinetic principles and dosage calculations is critical during this process.Pharmacokinetics of the...
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Hemodialysis I: Introduction01:25

Hemodialysis I: Introduction

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Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
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Drug Accumulation During Multiple Dosing: Intermittent IV Infusions01:24

Drug Accumulation During Multiple Dosing: Intermittent IV Infusions

334
Intermittent intravenous (IV) infusion is a method of drug administration where medications are delivered over short infusion periods followed by intervals of no drug delivery. This approach helps to prevent sustained high drug concentrations in the bloodstream, reducing the risk of adverse effects associated with prolonged exposure. Unlike continuous infusion, steady-state concentrations may not be achieved during a single dosing cycle but can be reached through repeated...
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Related Experiment Video

Updated: Mar 28, 2026

A Novel Approach for the Administration of Medications and Fluids in Emergency Scenarios and Settings
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Intravenous fluids: should we go with the flow?

Sibylle A Kozek-Langenecker

    Critical Care (London, England)
    |January 6, 2016
    PubMed
    Summary

    Individualized fluid resuscitation requires sensitive monitoring beyond traditional pressure values. Focus on actual volume status and dynamic parameters to optimize fluid therapy and prevent cellular damage.

    Area of Science:

    • Critical Care Medicine
    • Anesthesiology
    • Emergency Medicine

    Background:

    • Intravenous fluid resuscitation is crucial for managing hypovolemia and preventing tissue hypoperfusion.
    • Traditional macrocirculatory pressure parameters lack sensitivity for guiding fluid resuscitation.
    • Current guidelines show a shift towards individualized, dynamic monitoring for volume status.

    Purpose of the Study:

    • To emphasize the importance of sensitive monitoring in intravenous fluid resuscitation.
    • To advocate for individualized, goal-directed volume therapy over static pressure parameters.
    • To highlight the limitations of conventional parameters in assessing volume status.

    Main Methods:

    • Review of current guidelines, including Surviving Sepsis Campaign and European Society of Anaesthesiology (ESA) recommendations.

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  • Discussion of evidence-based S3 guidelines from German scientific societies on volume therapy.
  • Inclusion of clinical assessments (skin/mucosa turgor) and laboratory parameters (central venous oxygen saturation, lactate, base excess, hematocrit).

    • Main Results:

    • Macrocirculatory pressure values are insensitive indicators for fluid resuscitation needs.
    • Individualized care, monitoring actual volume status, and prompt hypovolemia correction are recommended.
    • Flow-based and dynamic preload parameters, fluid challenges, and leg-raising tests are proposed for guiding therapy.

    Conclusions:

    • Sensitive monitoring and individualized, goal-directed volume resuscitation techniques are essential for optimizing patient outcomes.
    • Avoiding hyper-resuscitation through predefined stop signals is critical.
    • A personalized approach using dynamic parameters ensures appropriate fluid administration.