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Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations01:15

Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations

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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Application of Dixon's Up-and-Down Design to Estimate the Minimum Alveolar Concentration of Sevoflurane in Rats with Refined Movement Classification03:02

Application of Dixon's Up-and-Down Design to Estimate the Minimum Alveolar Concentration of Sevoflurane in Rats with Refined Movement Classification

The protocol presented herein seeks to evaluate the depth of anesthesia utilizing Dixon's Up-and-Down Design in sedated rats subjected to a standardized pain stimulus. Furthermore, it delineates a classification of the various movement patterns...
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Understanding Concentration and Measuring Volumes08:51

Understanding Concentration and Measuring Volumes

Solutions are utilized to some degree in almost all biological research applications. Therefore understanding how to measure and manipulate them is imperative to any experiment. In this video, concepts in preparing solutions are introduced.
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In Vitro Method to Control Concentrations of Halogenated Gases in Cultured Alveolar Epithelial Cells04:56

In Vitro Method to Control Concentrations of Halogenated Gases in Cultured Alveolar Epithelial Cells

We describe an easy protocol specifically designed to reach precise and controlled concentrations of sevoflurane or isoflurane in vitro in order to improve our understanding of mechanisms involved in the epithelial lung injury and to test novel therapies for acute respiratory distress...
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A Microtiter Plate Method to Assess the Minimum Inhibitory Concentration of an Antibiotic05:16

A Microtiter Plate Method to Assess the Minimum Inhibitory Concentration of an Antibiotic

This video demonstrates a microtiter plate-based method for determining the Minimum Inhibitory Concentration (MIC) of test antibiotics against bacteria. Upon adding a suspension of the bacterial pathogen Pseudomonas aeruginosa to a microtiter plate containing serial dilutions of a test antibiotic, and an inhibitor of the production of pyomelanin by the bacteria, the optical density of the wells is measured to compute the minimum inhibitory concentration of the antibiotic, and the impact of the...
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Drug Concentrations: Measurements01:23

Drug Concentrations: Measurements

Drug concentration is the quantity of a drug present in a biological sample. Measuring drug amounts in biological samples allows the clinician to understand how a drug is absorbed, distributed, metabolized, and excreted. Samples can be obtained through invasive or non-invasive methods. Invasive techniques involve surgical or parenteral interventions to gather blood, cerebrospinal fluid, or tissue biopsy. Conversely, non-invasive approaches provide samples like urine, feces, and saliva.
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