NEET PG Medical – 2018 – Question – 17
In hypovolemic shock there is –
a) Afferent arteriolar constriction
b) Efferent arteriolar constriction
c) Increased blood flow to kidney
d) Normal cardiac output
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Correct Answer – A
Answer: A. Afferent arteriole constriction
Inadequate circulation volume.
Poor venous return to heart will decrease the stroke volume & cardiac output.
Compensation by tachycardia & increased systemic vascular resistance (SVR).
Become cold peripherally (shut down).
Most common causes – Fluid loss of any etiology
Hemorrhage
Salt & water loss
Sepsis
Burns
