What is the term for shock that occurs due to mechanical or physical obstruction in blood flow?

Obstructive shock refers specifically to a situation where blood flow is impeded due to a physical or mechanical blockage. This can occur in various scenarios such as pulmonary embolism, cardiac tamponade, or tension pneumothorax, where the heart or vessels are unable to circulate blood effectively due to an obstruction.

The focus in this type of shock is on the obstruction itself, which directly impacts the heart's ability to pump blood efficiently. Recognizing this type of shock is crucial as it requires targeted interventions to relieve the obstruction, helping restore normal blood flow and cardiac function.

In contrast, cardiogenic shock arises from the heart's inability to pump blood due to conditions like myocardial infarction, while hypovolemic shock is the result of blood volume loss, such as during severe bleeding. Distributive shock is characterized by a widespread dilation of blood vessels, leading to inadequate tissue perfusion despite normal blood volume. Each of these conditions is distinct in its etiology and treatment, which is critical for effective emergency response.