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Related Concept Videos

One-Compartment Model: IV Infusion01:09

One-Compartment Model: IV Infusion

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...
Two-Compartment Open Model: IV Infusion01:15

Two-Compartment Open Model: IV Infusion

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...
Drug Accumulation During Multiple Dosing: Intermittent IV Infusions01:24

Drug Accumulation During Multiple Dosing: Intermittent IV Infusions

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...
The Placebo Effect01:54

The Placebo Effect

The placebo effect occurs when people's expectations or beliefs influence or determine their experience in a given situation. In other words, simply expecting something to happen can actually make it happen.
Compartment Models: Single-Compartment Model01:14

Compartment Models: Single-Compartment Model

The single-compartment model serves as a simplified representation of the human body. This model assumes that the body functions as a single, well-mixed open compartment. When a drug is administered intravenously, it enters the body and quickly distributes uniformly. The drug then undergoes biotransformation and elimination, ultimately leaving the body. The volume of this compartment is referred to as the apparent volume of distribution into which the drug can uniformly distribute. In this...
Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...

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Related Experiment Video

Updated: Jun 29, 2026

Image-guided Convection-enhanced Delivery into Agarose Gel Models of the Brain
09:14

Image-guided Convection-enhanced Delivery into Agarose Gel Models of the Brain

Published on: May 14, 2014

The infusion illusion.

Laura E Targownik, Peter A Thomson

    The American Journal of Gastroenterology
    |October 16, 2008
    PubMed
    Summary
    This summary is machine-generated.

    High-risk peptic ulcer bleeding treatment may be simplified. A daily proton pump inhibitor (PPI) injection shows similar results to a continuous 72-hour infusion, potentially improving clinical practice.

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    Area of Science:

    • Gastroenterology
    • Clinical Trials
    • Pharmacology

    Background:

    • Standard treatment for high-risk peptic ulcer bleeding utilizes a 72-hour continuous intravenous proton pump inhibitor (PPI) infusion.
    • Evaluating alternative, less intensive PPI regimens is crucial for optimizing patient care and resource allocation.

    Discussion:

    • The study by Andruilli et al. presents a randomized controlled trial comparing continuous PPI infusion with a once-daily PPI bolus regimen.
    • Analysis will focus on the efficacy and safety outcomes of the less intensive PPI regimen.
    • Discussion will address the clinical implications, including potential benefits and drawbacks of adopting this approach.

    Key Insights:

    • A once-daily bolus of proton pump inhibitor (PPI) injection demonstrated comparable outcomes to standard 72-hour continuous intravenous infusion for high-risk peptic ulcer bleeding.
    • This finding suggests a potential shift towards a simpler and possibly more cost-effective treatment protocol.
    • The study provides evidence supporting the non-inferiority of the bolus regimen in managing acute gastrointestinal bleeding events.

    Outlook:

    • Further research should validate these findings in diverse patient populations and healthcare settings.
    • Investigating the long-term outcomes and economic impact of the once-daily PPI bolus regimen is warranted.
    • Adaptation of clinical guidelines may be considered pending further evidence on generalizability and patient adherence.