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Related Concept Videos

Transmission-based Precautions II: Airborne and Protective Environment01:25

Transmission-based Precautions II: Airborne and Protective Environment

Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
Transmission-based Precautions I: Contact, Enteric, and Droplets01:17

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

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...
Acute Respiratory Failure-III01:30

Acute Respiratory Failure-III

Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without causing...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
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Hypersensitivity Reactions: Delayed Hypersensitivity Reactions01:29

Hypersensitivity Reactions: Delayed Hypersensitivity Reactions

Delayed-Type Hypersensitivity (DTH), or Type IV hypersensitivity, is a cell-mediated immune response. It occurs when T cells, rather than antibodies, mediate a reaction to specific antigens. It is characterized by a delayed onset (1-2 days) and involves the recruitment of macrophages to the inflammation site.The initiation of a DTH response begins with the sensitization of T cells. During this phase, which lasts at least 1-2 weeks, antigen-specific T cells are activated, clonally expanded, and...
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Pathogens spread from their reservoirs to susceptible hosts through three main routes: contact transmission, vehicle transmission, and vector transmission. Each route involves distinct mechanisms of transfer.Contact TransmissionThis category includes direct contact, indirect contact, and droplet transmission:Direct contact involves immediate physical interaction between individuals—such as a handshake—which can spread pathogens like Streptococcus pyogenes, the bacterium responsible for...

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Related Experiment Video

Updated: Jul 13, 2026

Trans-vivo Delayed Type Hypersensitivity Assay for Antigen Specific Regulation
11:49

Trans-vivo Delayed Type Hypersensitivity Assay for Antigen Specific Regulation

Published on: May 2, 2013

Delays in stroke referrals.

F Johnston, J Wardlaw, M S Dennis

    Lancet (London, England)
    |July 16, 1999
    PubMed
    Summary

    Hospital physicians must accelerate the assessment of acute stroke patients. This is crucial for improving timely hospital referral and computed tomography (CT) scan utilization, which have faced criticism.

    Area of Science:

    • Neurology
    • Emergency Medicine
    • Radiology

    Background:

    • Timely assessment of acute stroke is critical for effective treatment.
    • Previous criticisms have targeted hospital referral processes and computed tomography (CT) utilization in stroke care.
    • Physician-led assessment is a key component of the acute stroke pathway.

    Discussion:

    • The speed of physician assessment directly impacts the efficiency of subsequent steps in stroke management.
    • Improving CT scan turnaround times and referral pathways requires faster initial physician evaluation.
    • Addressing bottlenecks in the early assessment phase is essential for optimizing patient outcomes.

    Key Insights:

    • Accelerating physician assessment of acute stroke is paramount for improving care.

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    Last Updated: Jul 13, 2026

    Trans-vivo Delayed Type Hypersensitivity Assay for Antigen Specific Regulation
    11:49

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    Published on: May 2, 2013

    Remote Laboratory Management: Respiratory Virus Diagnostics
    14:56

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    Published on: April 6, 2019

    Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
    11:41

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  • Faster assessments can enhance the effectiveness of hospital referral and CT imaging.
  • Current assessment protocols may contribute to delays in critical stroke interventions.
  • Outlook:

    • Future strategies should focus on streamlining physician assessment protocols for acute stroke.
    • Interventions aimed at speeding up CT scans and referrals depend on improved initial physician performance.
    • Enhanced physician training and workflow optimization are needed to meet critical time targets in stroke care.