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Related Concept Videos

Drug Accumulation During Multiple Dosing: Intermittent IV Infusions01:24

Drug Accumulation During Multiple Dosing: Intermittent IV Infusions

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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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One-Compartment Model: IV Infusion01:09

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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...
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Drug Accumulation During Multiple Dosing: Repetitive IV Injections01:21

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Calculating drug dosage and accumulation in multiple-dose regimens is crucial for achieving therapeutic efficacy while avoiding toxicity. This involves determining the plasma drug concentrations over time to optimize dosing schedules. The principle of superposition is fundamental in this process, allowing for the prediction of drug concentration in plasma following multiple doses based on single-dose data.The principle of superposition asserts that the plasma concentration-time curves from...
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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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Bioavailability Study Design: Single Versus Multiple Dose Studies01:11

Bioavailability Study Design: Single Versus Multiple Dose Studies

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Bioavailability studies are essential for understanding how a drug is absorbed, distributed, metabolized, and excreted in the body. These studies assess the extent and rate at which the active pharmaceutical agent becomes available at the site of action. The design of bioavailability studies can involve single-dose or multiple-dose regimens, each with distinct advantages and limitations.Single-dose studies are the preferred approach due to their simplicity and reduced drug exposure for...
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Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...
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Related Experiment Video

Updated: Apr 5, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
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Multiple Intravenous Infusions Phase 2a: Ontario Survey.

Mark Fan1, Christine Koczmara2, Caterina Masino1

  • 1HumanEra, University Health Network, Toronto, Ontario, Canada.

Ontario Health Technology Assessment Series
|August 11, 2015
PubMed
Summary
This summary is machine-generated.

Ontario hospitals show varied intravenous (IV) infusion practices, highlighting potential patient safety risks. Improvements are needed in areas like tubing use, medication administration, and labeling to enhance IV therapy safety.

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Area of Science:

  • Nursing
  • Patient Safety
  • Healthcare Policy

Background:

  • Previous research identified concerns regarding safe administration of multiple intravenous (IV) infusions in Ontario hospitals.
  • Phase 1b of the study highlighted specific patient safety risks associated with IV infusion practices.

Purpose of the Study:

  • To assess the prevalence of practices and policies that may contribute to patient safety risks in multiple IV infusion settings.
  • To identify specific areas of concern in IV infusion administration within Ontario hospitals.

Main Methods:

  • A survey was conducted with 64 clinical units where multiple IV infusions are common, such as adult intensive care units.
  • Survey questions focused on key areas identified in Phase 1b, including labeling, patient transfer, and secondary infusion policies.

Main Results:

  • Survey results revealed suboptimal practices and policies in several clinical units, indicating variability in IV infusion practices.
  • Key concerns included improper use of primary IV tubing with secondary infusions, administration of high-alert medications, unclear labeling, therapy interruptions during patient transfers, and coadministration issues.
  • Variability was noted in respondents' understanding of infusion pump bolus capabilities.

Conclusions:

  • The survey indicates variability in IV infusion practices across Ontario, suggesting opportunities for safety improvements.
  • Limitations include a small sample size, potential misunderstanding of survey questions, and a design error affecting one question.