Biomedical Basics

Shock

  • Created by Henry Stewart Talks
Published on December 31, 2025   4 min

A selection of talks on Infectious Diseases

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The following session will cover shock, focusing on the definition and major causes of shock, including hypervolemic, cardiogenic, and septic shock, as well as the critical importance of prompt recognition and intervention. We will discuss how to identify shock based on key symptoms and clinical signs and review diagnostic tools available to support diagnosis. Finally, we will outline immediate treatment strategies focused on restoring blood flow and addressing the underlying cause to improve patient outcomes. Shock is a life threatening emergency, resulting from inadequate blood flow to tissues and organs. When tissues lack oxygen and nutrients, vital cellular processes are disrupted, causing organ dysfunction, and if uncorrected, potentially death. Despite differing causes, all shock involves circulatory failure and insufficient perfusion. Early identification and is intervention are critical, as shock may progress rapidly and not always present dramatic initial symptoms. Prompt recognition greatly improves outcomes. Several types of shock are recognized, each with distinct mechanisms, but often similar clinical features. Hypovolemic shock results from significant blood or fluid loss, commonly due to trauma, gastrointestinal bleeding, or severe dehydration. Cardiogenic shock arises from the heart's inability to pump effectively, often due to heart failure or myocardial infarction. Septic shock is caused by overwhelming infection leading to inflammation and blood vessel dilation.

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