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Related Concept Videos

Toxidromes: Clinical Features01:30

Toxidromes: Clinical Features

Toxidromes are specific patterns of symptoms resulting from toxic substance exposure. They help in the identification and treatment of poisoning. The symptoms of each toxidrome group indicate poisoning by a certain class of chemicals or drugs.1. Sympathomimetic: Stimulates the sympathetic nervous system. Symptoms include agitation, increased heart rate (HR), blood pressure (BP), respiratory rate (RR), temperature, and pupil size. Drugs like cocaine and amphetamines, along with tremors and...
Types of Toxins01:36

Types of Toxins

Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
Air pollutants, primarily gases, pose significant threats to respiratory health, leading to conditions like hypoxia, lung cancer, and in extreme cases, death.
Environmental pollutants like...
Antidotes01:17

Antidotes

Antidotes are medicinal substances used to counteract the harmful effects of toxins or drugs in the body. They function in various ways, each uniquely designed to combat specific toxic compounds.
Specific antidotes operate by inhibiting the enzymes that control biochemical pathways, reducing the production of harmful metabolites.
An example of an antidote is atropine, which counteracts the detrimental effects of cholinesterase inhibitors. It achieves this by deactivating muscarinic receptors,...
Toxic Reactions: Overview01:26

Toxic Reactions: Overview

When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
Toxicity falls into two primary categories: local and systemic.
Local toxicity appears at the exposure site, such as protein denaturation caused by caustic substances.
In contrast, systemic toxicity requires the toxic agent's absorption and distribution,...
Toxicokinetics: Overview01:21

Toxicokinetics: Overview

Studies that assess how a drug is absorbed, distributed, metabolized, and excreted (ADME) at toxic doses are termed toxicokinetics. Understanding toxicokinetics helps predict adverse drug reactions (ADRs) and manage toxicity in humans.Toxicokinetics differs from pharmacokinetics mainly in the dose levels studied, with toxicokinetics focusing on higher toxic doses. The kinetics at these levels can be non-linear due to altered physiological processes. Toxicodynamics examines the relationship...
Drug Toxicity: Overview01:00

Drug Toxicity: Overview

Drug toxicity quantifies the harm a compound causes to an organism, varying by dose and potentially impacting whole systems or specific organs like the liver. Toxic reactions may arise from venomous insect or spider bites, with effects ranging from mild symptoms to severe outcomes such as brain damage or death. Common forms of acute poisoning include ethanol intoxication and overdose of pain or fever medications, with substances like GHB and heroin being particularly lethal at doses close to...

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Assessment of the Acute Inhalation Toxicity of Airborne Particles by Exposing Cultivated Human Lung Cells at the Air-Liquid Interface
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Toxidromes.

Christopher P Holstege1, Heather A Borek

  • 1Division of Medical Toxicology, Department of Emergency Medicine, Blue Ridge Poison Center, University of Virginia Health System, University of Virginia School of Medicine, PO Box 800774, Charlottesville, VA 22908-0774, USA. ch2xf@virginia.edu

Critical Care Clinics
|September 25, 2012
PubMed
Summary
This summary is machine-generated.

This review covers the approach to poisoned patients, emphasizing the usefulness of toxidromes. Recognizing toxidromes aids diagnosis but requires awareness of their limitations and exceptions.

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Area of Science:

  • Clinical Toxicology
  • Emergency Medicine

Background:

  • Critical care physicians frequently manage poisoned patients.
  • A systematic approach is essential for effective patient care.

Purpose of the Study:

  • To review the general approach to poisoned patients.
  • To highlight the clinical utility of toxidromes in diagnosis.

Main Methods:

  • Review of common toxidromes in clinical toxicology literature.
  • Focus on physical examination and ancillary testing findings.

Main Results:

  • Toxidromes represent a collection of signs and symptoms indicative of specific poisonings.
  • Common toxidromes can help narrow the differential diagnosis in poisoned patients.

Conclusions:

  • Toxidromes are valuable tools for critical care physicians managing poisoned patients.
  • Clinicians must understand the exceptions and limitations of toxidromes for accurate diagnosis.