Related Experiment Video
Updated: Jun 13, 2026
08:46
Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
To dose or not to dose: that is the (starch) question
1Lewis.Kaplan@yale.edu
Critical Care (London, England)
|May 13, 2010
Summary
Modern starches used for fluid resuscitation in intensive care units may impact kidney function. This review examines their role in renal dysfunction and hyperoncoticity, clarifying definitions of acute kidney injury and acute renal failure.
Area of Science:
- Nephrology
- Critical Care Medicine
- Pharmacology
Background:
- Investigates the effects of modern starch-based colloids on renal function.
- Focuses on their use in intensive care unit (ICU) fluid resuscitation.
- Reviews the potential link between starch administration and kidney dysfunction.
Discussion:
- Examines the definition and diagnosis of acute kidney injury (AKI) and acute renal failure (ARF).
- Discusses the concept of hyperoncoticity and its implications for renal hemodynamics.
- Analyzes the mechanisms by which starches might induce renal injury.
Key Insights:
- Modern starches can influence renal function, necessitating careful patient selection and monitoring.
- Clear definitions of AKI and ARF are crucial for accurate assessment of renal outcomes.
- Hyperoncoticity of starch solutions may contribute to adverse renal effects.
Outlook:
- Further research is needed to elucidate the precise mechanisms of starch-induced nephrotoxicity.
- Development of safer resuscitation fluids with minimal renal impact is a priority.
- Clinical guidelines should address the judicious use of starch-based colloids in critically ill patients.
Related Concept Videos
01:25Determination of Multiple Dosing Parameters: Loading and Maintenance Doses
A loading dose is an essential pharmacological strategy to rapidly achieve the target plasma drug concentration necessary for an immediate therapeutic effect. This approach is especially critical for drugs characterized by slow absorption or extended half-lives, where delaying therapeutic plasma levels could compromise treatment outcomes. By administering a loading dose, clinicians ensure a prompt onset of drug action, even for agents with complex pharmacokinetic profiles.Achieving steady-state...
01:21Dose Size and Dosing Frequency: Determination Methods
Determining the optimal dose size and dosing frequency in pharmacotherapy is crucial for achieving therapeutic effectiveness while minimizing adverse effects. This article explores the methodologies employed in determining these parameters, focusing on their significance and interplay to tailor dosing regimens.Dose Size: Dose size refers to the amount of a drug administered in a single dose. It is determined based on the drug's pharmacodynamics and pharmacokinetics properties and...
01:24Rational Dosage Regimen: Maintenance Dose and Loading Dose
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.
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady state,...
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady state,...
01:03Dose-Response Relationship: Overview
Agonists can bind with and activate receptors, resulting in the formation of drug-receptor complexes. Once formed, these complexes catalyze many biochemical processes at the cellular level and subsequently induce a pharmacologic response. The degree of response is directly proportional to the fraction of activated receptors, which in turn, depends on the concentration of the drug at the receptor site as well as the sensitivity of the receptor. An increase in the administered dose contributes to...
01:01Dosage Regimen: Fixed Dose
Fixed-dose regimens are a common approach to administer drugs to achieve and maintain desired levels of the drug in the body. In this dosing strategy, a specific amount of medication is given at regular intervals, often multiple times a day, to ensure a consistent drug concentration in the bloodstream.
Fixed-dose regimens can be used for various routes of administration, including intravenous (IV) injections and oral medications. For IV administration, a predetermined amount of the drug is...
Fixed-dose regimens can be used for various routes of administration, including intravenous (IV) injections and oral medications. For IV administration, a predetermined amount of the drug is...
01:21Drug Accumulation During Multiple Dosing: Repetitive IV Injections
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...