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Questions and Answers
What is hypovolemic shock caused by?
What is cardiogenic shock caused by?
What is septic shock caused by?
What is the common symptom of shock?
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What is the primary cause of tissue hypoperfusion in shock?
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What is the characteristic clinical feature of shock?
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What type of shock is caused by a reduction in blood volume?
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What is the primary cause of cardiogenic shock?
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What type of shock is caused by severe bacterial infection in immunosuppressed individuals?
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Study Notes
Gangrene
- Classified into four types: dry gangrene, moist gangrene, infective gangrene, and gas gangrene
- Dry gangrene occurs in tissues with poor blood supply and minimal tissue fluids
- Moist gangrene occurs in tissues rich in body fluids
Shock
- Defined as a state of tissue hypoperfusion due to inadequate effective circulating blood volume
- Clinical picture:
- Patient exhibits confusion
- Skin is pale and cold
- Rapid, weak pulse
- Low blood pressure
- Shallow, rapid breathing
- Oliguria (reduced urine output)
Types of Shock
-
Hypovolemic Shock
- Defined as reduction of blood volume due to severe hemorrhage, acute dehydration, or severe burns
- Pathogenesis:
- Decreased effective circulating blood volume
- Decreased venous return
- Decreased cardiac output
- Reduced blood flow
- Reduced oxygen supply to tissues
-
Cardiogenic Shock
- Defined as reduced cardiac output due to inability of heart to pump adequate blood in presence of normal blood volume
- Causes:
- Coronary artery occlusion
- Arrhythmia
- Cardiac tamponade
-
Septic Shock
- Caused by severe bacterial infection in immunosuppressed individuals
Gangrene
- Classified into four types: dry gangrene, moist gangrene, infective gangrene, and gas gangrene
- Dry gangrene occurs in tissues with poor blood supply and minimal tissue fluids
- Moist gangrene occurs in tissues rich in body fluids
Shock
- Defined as a state of tissue hypoperfusion due to inadequate effective circulating blood volume
- Clinical picture:
- Patient exhibits confusion
- Skin is pale and cold
- Rapid, weak pulse
- Low blood pressure
- Shallow, rapid breathing
- Oliguria (reduced urine output)
Types of Shock
-
Hypovolemic Shock
- Defined as reduction of blood volume due to severe hemorrhage, acute dehydration, or severe burns
- Pathogenesis:
- Decreased effective circulating blood volume
- Decreased venous return
- Decreased cardiac output
- Reduced blood flow
- Reduced oxygen supply to tissues
-
Cardiogenic Shock
- Defined as reduced cardiac output due to inability of heart to pump adequate blood in presence of normal blood volume
- Causes:
- Coronary artery occlusion
- Arrhythmia
- Cardiac tamponade
-
Septic Shock
- Caused by severe bacterial infection in immunosuppressed individuals
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Description
This quiz covers the different types of gangrene, including dry, moist, infective, and gas gangrene, as well as the definition and clinical picture of shock.
