Final answer:
When a patient transitions from compensated to decompensated shock, they experience a decrease in blood pressure.
Step-by-step explanation:
In the case of circulatory shock, a patient transitions from compensated to decompensated shock when they experience a decrease in blood pressure. So, the correct answer to the question is C) Hypotension.
When a patient goes into decompensated shock, their blood pressure drops significantly, indicating that the compensatory mechanisms in the body are no longer able to maintain proper perfusion. This can lead to severe organ dysfunction and potentially death if not treated promptly.