The Nurse in a Heart Failure Clinic Explains the Effect

The nurse in a heart failure clinic explains the effect of cardiac dysrhythmia on the body to a group of clients. What is the most important information to include in this teaching?

A) "Cardiac rhythm disturbances cause a decrease in the amount of blood pumped out of your heart with each contraction"
B) "Most cardiac rhythm disturbances do not affect the body at all."
C) "The biggest problem with most cardiac rhythm disturbances is that they cause nervousness and irritability."
D) "Cardiac rhythm disturbances often cause gastrointestinal upset."