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Related Concept Videos

Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
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Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
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Pulmonary Tuberculosis II01:28

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Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
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Transmission-based Precautions II: Airborne and Protective Environment01:25

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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...
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Pulmonary Cycle: Exhalation01:17

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In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
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Pneumothorax-I01:26

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A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
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What's Old Is New Again: Pertussis.

Caitlin Naureckas Li1, Kathryn M Edwards2, Sheldon L Kaplan3

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Pertussis (whooping cough) remains difficult to control despite vaccines, with rising cases impacting infants most severely. Maternal vaccination during pregnancy offers crucial protection for newborns against this serious respiratory illness.

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Area of Science:

  • Infectious Diseases
  • Pediatrics
  • Vaccinology

Background:

  • Pertussis (whooping cough) incidence is increasing despite vaccine availability.
  • Factors contributing to rising pertussis include improved diagnostics, vaccine changes, and missed vaccinations.
  • Infants are most vulnerable to severe pertussis complications and mortality.

Purpose of the Study:

  • To highlight the challenges in controlling pertussis.
  • To emphasize the importance of maternal immunization for infant protection.
  • To inform healthcare providers about pertussis presentation and management across age groups.

Main Methods:

  • Review of current pertussis epidemiology and control challenges.
  • Analysis of infant pertussis clinical presentation variations.
  • Discussion of vaccination strategies, including maternal vaccination and postexposure prophylaxis.

Main Results:

  • Pertussis control is hampered by diagnostic, vaccine, and vaccination access issues.
  • Infant pertussis presentation differs from adult stages.
  • Maternal immunization during pregnancy is a key protective strategy for infants.

Conclusions:

  • Understanding diverse clinical presentations is vital for prompt diagnosis and treatment.
  • Healthcare providers play a critical role in vaccination counseling for pregnant women and families.
  • Effective pertussis management requires a multi-faceted approach including vaccination and informed clinical practice.