Hypovolemic Shock Features Explained
Hypovolemic shock results from a significant loss of circulating blood volume. The body activates compensatory mechanisms to maintain perfusion.
Features of Hypovolemic Shock
Common signs and symptoms include:
- Low Blood Pressure: Due to decreased venous return and cardiac output.
- Oliguria: Reduced urine output occurs as the kidneys try to conserve fluid and due to poor renal perfusion.
- Acidosis: Develops from inadequate tissue oxygenation (anaerobic metabolism).
- Tachycardia: An increased heart rate is a primary compensatory response to maintain cardiac output despite low volume.
Identifying the Exception
The question asks for the feature that is *not* typical of hypovolemic shock. While the other options (oliguria, low blood pressure, acidosis) are characteristic:
- Bradycardia (a slow heart rate) is generally not a feature. The body's typical response to volume loss is tachycardia, not bradycardia. Bradycardia might indicate a different underlying issue or a very late, decompensated stage, but it's the exception among the listed options.
Therefore, bradycardia is the correct answer as it is not an expected primary feature of hypovolemic 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.
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.
- 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:
- Regarding haemorrhagic shock, which one of the following statements is correct?
