Distributive shock is described by which of the following patterns of cardio- vascular responses? 1. Vasodilation 2. Reduced resistance peripheral vascular 3. Inadequate 'afterload' 4. Low cardiac output Select the correct answer using the code given below.
Distributive Shock Cardiovascular Patterns Explained
Distributive shock is a critical condition characterized by widespread vasodilation, leading to a significant drop in systemic vascular resistance.
Key Cardiovascular Responses Identified
- 1. Vasodilation: This is a hallmark feature where blood vessels expand, increasing the volume they can hold.
- 2. Reduced peripheral vascular resistance: The widening of vessels directly causes a decrease in the resistance blood encounters as it flows through the periphery.
- 3. Inadequate 'afterload': Afterload represents the resistance the heart must overcome to eject blood. Reduced peripheral vascular resistance leads to lower afterload.
- 4. Low cardiac output: While cardiac output can eventually decrease in advanced stages, it is often normal or even elevated in the initial compensatory phase of distributive shock due to increased heart rate. Therefore, it's not a primary defining characteristic of the initial pattern.
The combination of vasodilation, reduced peripheral resistance, and low afterload accurately describes the primary cardiovascular response pattern in distributive shock.
Important Questions from Types of Shock & Treatment
Which of the following are correct in respect of Systemic Inflammatory Response Syndrome (SIRS)?
1. It is caused by the release of lipopolysaccharide endotoxin from dying $E. coli$ bacteria.
2. It is same as bacteraemia.
3. It results in Multiple Organ Dysfunction Syndrome (MODS).
4. White cell counts of more than $12\times10^9$/litre are present.
Select the answer using the code given below.
- The best measure of organ perfusion and the best monitor of adequacy of shock therapy is
- The capillary refill time is prolonged in all types of shock EXCEPT:
- The following are features of hypovolemic shock except:
- Regarding haemorrhagic shock, which one of the following statements is correct?
