The large “spike” in a cardiac complex is the:

Question

moment just before the atria contract.

moment just before the atria contract.

moment just before the ventricles contract.

moment just before the ventricles contract.

moment when the ventricles relax.

moment when the ventricles relax.

moment the ventricles repolarize.

Answer 1

The large "spike" in a cardiac complex is typically the moment just before the ventricles contract.