Final answer:
Hypervolemia triggers increased heart rate (tachycardia) as a compensatory mechanism.
Step-by-step explanation:
Hypervolemia triggers increased blood volume, which in turn activates compensatory mechanisms to restore homeostasis. One of these compensatory mechanisms is increased heart rate (tachycardia). The heart beats faster to pump a larger volume of blood and maintain normal blood pressure. This helps to compensate for the excess fluid in the bloodstream