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Related Concept Videos

Anticholinesterase Agents: Poisoning and Treatment01:26

Anticholinesterase Agents: Poisoning and Treatment

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Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.     
Irreversible agents form a strong bond with the cholinesterase enzyme, making it inactive. The breakdown of the phosphorylated enzyme is...
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Prevention of Further Absorption of Poison01:14

Prevention of Further Absorption of Poison

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In cases of acute poisoning, the primary objective is to prevent further absorption of the toxic substance into the body. Immediate interventions using various decontamination techniques targeting the gastrointestinal (GI) tract can achieve this. Decontamination is crucial to prevent poison from entering the systemic circulation, which involves washing affected areas with water and mild soap and removing contaminated clothing. Once external decontamination is done, attention must be turned to...
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Antidotes01:17

Antidotes

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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.
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Enhanced Elimination of Poison01:26

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Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
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Renal excretion is the...
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Complexation Equilibria: The Chelate Effect01:19

Complexation Equilibria: The Chelate Effect

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In complexation reactions, metal atoms or cations interact with ligands to form donor-acceptor adducts called metal complexes. Ligands that bind through one donor site are monodentate, ligands with two donor sites are bidentate, and those with more than two donor sites are polydentate ligands. For example, ethylene diamine is a bidentate ligand that binds through two nitrogen donor atoms, forming a five-membered ring. EDTA is a polydentate ligand that binds through four oxygen and two nitrogen...
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Chronic Pancreatitis II: Collaborative Care01:29

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The management of chronic pancreatitis is multifaceted, involving a comprehensive approach that includes thorough assessment, diagnostic testing, and a variety of management strategies.
Assessment:
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Updated: Oct 23, 2025

Ion Mobility-Mass Spectrometry Techniques for Determining the Structure and Mechanisms of Metal Ion Recognition and Redox Activity of Metal Binding Oligopeptides
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Americium Inhalational Exposure with Successful Chelation Therapy.

Michael Keenan1, Torsten Behrens1, Stan Bravenec2

  • 1Department of Emergency Medicine, University at Buffalo, Buffalo, NY, USA.

Disaster Medicine and Public Health Preparedness
|August 17, 2021
PubMed
Summary
This summary is machine-generated.

Occupational inhalation of americium-241 was treated effectively with external decontamination and decorporation therapy. This case highlights the risks of americium exposure and its potential use in radiological dispersion devices.

Keywords:
AmericiumChelationDTPARadiation InjuriesToxicology

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Area of Science:

  • Nuclear Chemistry
  • Radiological Health

Background:

  • Americium, a man-made radioactive element, is produced in nuclear reactors.
  • Americium-241 is a specific isotope with commercial uses, notably in smoke detectors.

Observation:

  • This report details a case of occupational inhalation exposure to americium-241.
  • The exposure necessitated immediate and effective treatment interventions.

Findings:

  • The patient underwent successful external decontamination procedures.
  • Diethylenetriamine pentaacetate was administered to promote decorporation of the americium-241 isotope.

Implications:

  • This case underscores the importance of safety protocols in handling radioactive materials like americium.
  • The potential misuse of americium in radiological dispersion devices presents a significant public health concern.