A client diagnosed with asthma asks the nurse why an albuterol (Proventil) inhaler is better than isoproterenol (Isuprel).The nurse's response should be based on the physiologic concept that isoproterenol primarily affects which receptors?
a. Alpha 2 receptors
b. Alpha 1 receptors
c. Beta 1 and beta 2 receptors
d. All of the receptors
