A Patients Severe Asthma Has Necessitated the Use of a Long-Acting

A patients severe asthma has necessitated the use of a long-acting beta2-agonist (LABA) . Which of the patients statements suggests a need for further education?

A) I know that these drugs can sometimes make my heart beat faster.
B) Ive heard that this drug is particularly good at preventing asthma attacks during exercise.
C) Ill make sure to use this each time I feel an asthma attack coming on.
D) Ive heard that this drug sometimes gets less effective over time.