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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.
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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 is a medical condition defined by the buildup of air in the pleural space between the lungs and the chest wall. This accumulation of air can lead to partial or complete lung collapse, resulting in a range of clinical manifestations. Understanding the clinical presentation and effective management strategies is crucial for healthcare professionals in providing timely and appropriate care to individuals with pneumothorax.
Clinical Manifestations:
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Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
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A pulmonary embolism occurs when a thrombus, amniotic fluid, tumor tissue, fat, or air embolus blocks one or more pulmonary arteries. Effective nursing management and patient education are crucial for improving outcomes and preventing recurrence.Nursing management starts with obtaining a comprehensive patient history, particularly noting any history of deep vein thrombosis (DVT). Assess for clinical manifestations, including dyspnea, chest pain, crackles, heart murmurs, and signs of right-sided...
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Diagnosing Pulmonary EmbolismDiagnosing pulmonary embolism (PE) involves clinical assessment and advanced imaging tests. The preferred diagnostic tool is the spiral (helical) CT scan or CT angiography (CTA), which uses intravenous contrast media to visualize the pulmonary vasculature and identify emboli.A ventilation-perfusion (V/Q) scan is an alternative for patients unable to receive contrast media. This scan includes both perfusion and ventilation scanning. Perfusion scanning involves...
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Non-traumatic Pulmonary Emergencies in the Deployed Setting.

Nikhil A Huprikar1, Steven D Deas1, Andrew J Skabelund1

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Pulmonary emergencies, including infections and chemical exposures, are a significant concern for deployed military personnel, necessitating aeromedical evacuation. Understanding these conditions is vital for effective medical care in theater.

Keywords:
Afghan warChemical warfareCritical careIraq warLung injuryPulmonary eosinophiliaWar-related injuriesWar-related trauma

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Area of Science:

  • Military Medicine
  • Pulmonology
  • Environmental Health

Background:

  • Pulmonary disorders represent a significant cause of medical evacuations from military deployments.
  • Over 70,000 medical evacuations from Iraq and Afghanistan in 15 years included up to 8% for pulmonary issues.

Purpose of the Study:

  • To review non-traumatic pulmonary emergencies in deployed settings.
  • To outline military medical treatment capabilities for these emergencies.
  • To identify pulmonary conditions requiring aeromedical evacuation.

Main Methods:

  • Literature review of non-traumatic pulmonary emergencies.
  • Analysis of medical evacuation data from recent conflicts.

Main Results:

  • Recent studies enhance understanding of pulmonary disease epidemiology in deployed forces.
  • Specific parenchymal diseases and unique infection pathologies have been identified.
  • Data on chemical exposures in deployed environments is limited.

Conclusions:

  • Respiratory disorders necessitating evacuation are diverse, including pulmonary emboli and infections.
  • Hazardous chemical exposures pose a threat to deployed warfighters.
  • Further research on epidemiology and environmental exposures is crucial for optimal care.