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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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Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
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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.     
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While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
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Conditioned taste aversion, also known as sauce béarnaise syndrome, is a phenomenon in which an individual develops an aversion to a certain food taste following a negative experience, typically illness. This form of aversion is a type of classical conditioning in which the taste of the food (conditioned stimulus, CS) is associated with the experience of illness (unconditioned stimulus, UCS).
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Related Experiment Video

Updated: Nov 9, 2025

Author Spotlight: Optimizing Scorpion Venom Extraction for Antivenom Production
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Fatal Sea Snake Envenomation.

Marianne Tiemensma, Roger W Byard

    The American Journal of Forensic Medicine and Pathology
    |April 9, 2021
    PubMed
    Summary

    A fatal black-banded sea snake bite caused rapid neurotoxic symptoms and death in a fisherman. Subtle bite marks and nonspecific findings can delay diagnosis of lethal sea snake envenomation.

    Area of Science:

    • Marine Biology
    • Toxicology
    • Pathology

    Background:

    • Sea snake envenomation is a significant risk for individuals working or recreating in marine environments.
    • Laticauda colubrina, the black-banded sea snake, possesses potent neurotoxic venom.
    • Rapid diagnosis and treatment are crucial for managing severe envenomation.

    Observation:

    • A 23-year-old man experienced rapid onset of ptosis, blurred vision, respiratory distress, convulsions, and loss of consciousness following a black-banded sea snake bite.
    • Autopsy revealed a small, inconspicuous puncture wound with no local reaction.
    • Elevated creatine kinase and myoglobin levels indicated muscle damage.

    Findings:

    • Death resulted from respiratory failure secondary to neurotoxic envenomation.

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  • The study highlights diagnostic challenges due to subtle bite marks and nonspecific pathological findings.
  • Myonecrosis was present but variable.

    • Implications:

    • This case underscores the importance of considering sea snake envenomation in individuals presenting with neurological symptoms after marine exposure, especially fishermen.
    • The neurotoxic effects of the venom can lead to rapid deterioration and death if not promptly recognized and treated.
    • Increased awareness and accessibility to antivenom in remote areas are vital for improving outcomes.