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Related Concept Videos

Two-Compartment Open Model: IV Infusion01:15

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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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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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Routes of Drug Administration: Parenteral01:25

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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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Drug Delivery: Parenteral Route01:29

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The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally.
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
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One-Compartment Open Model for IV Bolus Administration: General Considerations01:19

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The one-compartment model is a pharmacokinetic tool that models the body as a single, uniform compartment, facilitating the understanding of drug distribution and elimination. This model is particularly beneficial for intravenous (IV) bolus administration, where the drug rapidly circulates throughout the body.
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A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
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Secondary Infusion Underdelivery: Risks and Rewards of Common Workarounds.

Jeannine W C Blake1, Robert Butterfield2, Tiffany Hopper3

  • 1Jeannine W.C. Blake is Assistant Professor, Elaine Marieb College of Nursing and Elaine Marieb Center for Nursing and Engineering Innovation, University of Massachusetts Amherst, 651 N Pleasant St, Amherst, Massachusetts 01003 (jcondon@umass.edu).

AACN Advanced Critical Care
|September 4, 2025
PubMed
Summary
This summary is machine-generated.

Linear peristaltic smart pumps risk underdelivery of secondary medications due to head-height needs. Clinician workarounds improve delivery but add safety risks, unlike safer cassette-based pumps.

Keywords:
drug administrationinfusion pumpsintravenous infusionmedication errorpatient safety

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Area of Science:

  • Infusion Therapy
  • Biomedical Engineering
  • Patient Safety

Background:

  • Large-volume smart pumps enhance medication delivery safety and workflow.
  • Linear peristaltic pumps require head-height differential for accurate secondary infusions, posing underdelivery risks.
  • Current clinician workarounds for underdelivery introduce new safety hazards and increase cognitive load.

Purpose of the Study:

  • To evaluate the risks and benefits of common workarounds for secondary medication underdelivery with linear peristaltic large-volume smart pumps.
  • To compare the safety and efficacy of linear peristaltic pumps with alternative cassette-based systems.
  • To provide guidance for informed decision-making regarding infusion therapy technology.

Main Methods:

  • Review of common clinician workarounds: primary mode delivery, programming excess volume, clamping primary lines, and short-set primary delivery.
  • Analysis of associated safety risks, alert burden, and cognitive load.
  • Evaluation of cassette-based pump technology utilizing valve-controlled fluid delivery.

Main Results:

  • Workarounds, while aiming for full medication delivery, introduce significant safety risks and increase clinician burden.
  • Linear peristaltic pumps' reliance on head-height differential is a key limitation.
  • Cassette-based pumps eliminate the need for head-height differential, reducing human error potential.

Conclusions:

  • Clinician workarounds for secondary medication underdelivery present substantial safety concerns.
  • Transitioning to cassette-based large-volume smart pumps offers a safer alternative.
  • Adopting advanced technology is crucial for improving infusion safety and reducing clinician workload.