It is caused by mechanical obstruction of blood flow to and/or from the heart and causes can include a tension pneumothorax, cardiac tamponade, pulmonary embolus, or cardiac defects resulting in left-sided outflow tract obstruction. NOT exclude the diagnosis of shock. Classic Presentation Signs of shock may be subtle or obvious. Different types of Shock: 1. hypovolaemic 2. cardiogenic 3. distributive 4. obstructive Type of shock … Clinical evidence of organ hypoperfusion include: Decreased conscious level, skin mottling, cold peripheries, poor capillary refill, oligouria, lactic acidosis. The heart does not have the space to pump effectively. • Obstructive (a mechanical barrier i.e. Obstructive shock is a less common, but important cause of shock in critically ill infants and children. This article is available as HTML full text and PDF. This technique will not remove blood, but will place the pleural space at atmospheric pres … shock, obstructive shock, and distributive shock. Similarly, the classes of hemorrhagic shock are grouped by signs and symptoms, amount of blood loss, and the type of fluid replacement. The type of shock needs to be rapidly elucidated and initial management steps initiated to minimize the time of tissue hypoperfusion. [1]. Treatment of Obstructive Shock The additional option for treatment of obstruc-tive shock from pneumothorax is needle tho-racostomy to decrease air tension as explained in . Obstructive shock occurs when the heart cannot work properl y for a physical reason. Diagnosis of shock Shock may be suspected based on the history given – predation, vehicle obstructive; (3) cardiogenic; and (4) hemorrhagic. The accumulation of blood outside the heart, but inside the sac of the heart, known as tamponade, is an example. Septic shock, a form of distributive shock, is the most common form of shock among patients in the ICU, followed by cardiogenic and hypovolemic shock; obstructive shock is relatively rare (Fig. Obstructive shock is a less common, but important cause of shock in critically ill infants and children. Obstructive Non-cardiac obstruction to blood flow Pulmonary embolus, tension pneumothorax, tamponade Understanding the primary cause is important to guide treatment, but the end results of shock (circulatory collapse and end organ damage) are the same for all. "Undifferentiated shock" refers to the situation where shock is recognized but the cause is unclear. septic shock, which will be discussed in the next section. cardiac tamponade, tension pneumo) • Cardiogenic shock (pump failure) Stages of Shock • Initial shock • Compensatory shock • Progressive shock • Refractory shock (end stage, super bad news) Clinical S/S of Shock (these are the general signs, each type has specifics) EPIDEMIOLOGY Septic shock, a form of distributive shock, is the most common form of shock among patients admitted to the intensive care unit, followed by cardiogenic and hypovolemic shock; obstructive shock is rare [ 1,2 ]. View. It is caused by mechanical obstruction of blood flow to and/or from the heart and causes can include a tension pneumothorax, cardiac tamponade, pulmonary embolus, or cardiac defects resulting in left-sided outflow tract obstruction. Hypovolemic shock is defined as the rapid fluid loss or . 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