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Related Concept Videos

Transmission-based Precautions I: Contact, Enteric, and Droplets01:17

Transmission-based Precautions I: Contact, Enteric, and Droplets

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Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
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Standard Precaution01:26

Standard Precaution

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Standard precautions are the minimum infection control safeguards used while caring for all patients, irrespective of their disease condition. They help prevent the spread of common infectious microorganisms to healthcare workers, patients, and visitors in all healthcare settings.
Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
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Contact Angle01:13

Contact Angle

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When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
The adhesive force is the molecular force between molecules of different materials, that is, between the molecules of the solid and the liquid. The cohesive...
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Contact-dependent Signaling01:19

Contact-dependent Signaling

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Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
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Resistivity01:22

Resistivity

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When a voltage is applied to a conductor, an electrical field is generated, and charges in the conductor feel the force due to the electrical field. The current density that results depends on the electrical field and the properties of the material. In some materials, including metals at a given temperature, the current density is approximately proportional to the electrical field. In these cases, the current density can be modeled as:
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Resistance01:19

Resistance

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When a current moves through any conductor, the conductor causes some level of difficulty for the current to flow. The measure of that difficulty is known as the resistance of the material and is represented by R. Every material has its own resistance. In the case of conductors, heat is emitted whenever a current passes through them. Resistance depends on the resistivity of the material. Resistivity is a characteristic of the material used to fabricate electrical components, whereas the...
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Related Experiment Video

Updated: Feb 7, 2026

In Vivo Investigation of Antimicrobial Blue Light Therapy for Multidrug-resistant Acinetobacter baumannii Burn Infections Using Bioluminescence Imaging
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Multidrug-Resistant Organisms and Contact Precautions.

Betsy Todd

    The American Journal of Nursing
    |July 27, 2018
    PubMed
    Summary

    Nurses often know when to initiate infection control precautions. However, determining the optimal duration for these precautions remains a critical, unresolved question in patient care.

    Area of Science:

    • Nursing
    • Infection Control
    • Patient Safety

    Background:

    • Healthcare-associated infections (HAIs) pose a significant threat to patient safety.
    • Standard protocols exist for initiating infection control precautions.
    • Clear guidelines for the discontinuation of these precautions are often lacking.

    Purpose of the Study:

    • To investigate the current practices and challenges associated with determining the duration of infection control precautions.
    • To identify factors influencing the decision-making process for ending isolation measures.
    • To provide evidence-based recommendations for optimizing the duration of infection control precautions.

    Main Methods:

    • Systematic literature review of studies on infection control precaution duration.

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    Expression, Detergent Solubilization, and Purification of a Membrane Transporter, the MexB Multidrug Resistance Protein

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    Last Updated: Feb 7, 2026

    In Vivo Investigation of Antimicrobial Blue Light Therapy for Multidrug-resistant Acinetobacter baumannii Burn Infections Using Bioluminescence Imaging
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    The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis
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  • Analysis of clinical guidelines and expert consensus statements.
  • Survey of nursing professionals regarding their experiences and decision-making criteria.

    • Main Results:

    • Variability in the duration of infection control precautions across different settings and pathogens.
    • Commonly cited reasons for prolonged or premature discontinuation of precautions.
    • Identification of key clinical indicators and patient factors influencing removal decisions.

    Conclusions:

    • The optimal duration for infection control precautions requires further research and standardized protocols.
    • Implementing evidence-based criteria for discontinuation can enhance patient safety and resource allocation.
    • Further education and guideline development are needed to support nurses in this critical decision-making process.