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

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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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Gentamicin, an aminoglycoside antibiotic, is commonly administered via intermittent intravenous infusion to treat severe infections. An intermittent one-hour infusion of gentamicin, administered at eight-hour intervals, allows for precise control of plasma drug concentrations, minimizing toxicity while ensuring therapeutic efficacy. Pharmacokinetic principles govern the dynamics of plasma concentrations and can be mathematically described using specific equations.The plasma drug concentration...
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IV Infusion to Oral Dosing: Conversion Methods01:28

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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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Insulin Formulations: Types and Delivery01:27

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Improving IV Insulin Administration in a Community Hospital
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Target attainment through algorithm design during intravenous insulin infusion.

Radha Devi1, Tatheer Zohra, Bradley S Howard

  • 11 St. Francis Hospital , Evanston, Illinois.

Diabetes Technology & Therapeutics
|December 21, 2013
PubMed
Summary
This summary is machine-generated.

This study shows that specific algorithms can maintain target blood glucose (BG) levels in critically ill patients. Different algorithms effectively control BG within three distinct ranges, demonstrating the feasibility of computerized glucose management.

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Area of Science:

  • Critical Care Medicine
  • Endocrinology
  • Biomedical Engineering

Background:

  • Intravenous insulin infusion algorithms are crucial for managing blood glucose (BG) in critically ill patients.
  • These algorithms dynamically adjust insulin infusion rates (IR) based on BG levels and maintenance rates (MR).
  • A sigmoidal relationship between BG and IR is employed, with inflection points set at target BG levels.

Purpose of the Study:

  • To evaluate the effectiveness of distinct computer-based algorithms for maintaining target blood glucose (BG) levels.
  • To assess the performance of algorithms across three different BG target ranges in a clinical setting.

Main Methods:

  • A retrospective analysis of patient data from St. Francis Hospital, Evanston, IL, was conducted.
  • Patients were grouped based on the specific tabular algorithm used for BG management during the first half of 2012.
  • Performance was evaluated using group geometric mean (GGM) for central tendency and multiplicative surrogate standard deviation (MSSD) for variability.

Main Results:

  • Data from 58 patients were analyzed after achieving target BG control.
  • In the 100-149 mg/dL target group, 5 patients experienced hypoglycemia (BG <70 mg/dL).
  • GGMs for the target ranges 200-299, 150-199, and 100-149 mg/dL were 269.4, 172.6, and 131.3 mg/dL, respectively. MSSDs were (÷/× 1.14), (÷/× 1.20), and (÷/× 1.20).

Conclusions:

  • The study suggests that achieving and maintaining BG control within specific target ranges is feasible with appropriate algorithm selection.
  • Computerized algorithms demonstrate potential for effective BG management in diverse critical care scenarios.
  • The choice of algorithm is critical for successful BG maintenance within designated therapeutic ranges.