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 affects which receptors?
1. Alpha-1 receptors
2. Beta-1 and beta-2 receptors
3. Alpha-2 receptors
4. All of the receptors
Correct Answer: 2
Rationale 1: Isoproterenol does not affect alpha-1 receptors.
Rationale 2: Isoproterenol affects beta-1 and beta-2 receptors.
Rationale 3: Isoproterenol does not affect alpha-2 receptors.
Rationale 4: Isoproterenol does not affect all receptors.
Global Rationale: Isoproterenol affects beta-1 and beta-2 receptors. Isoproterenol does not affect alpha-1 receptors, beta-1 and beta-2 receptors, or all receptors.
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A patient with cardiac disease has developed an intracardiac thrombus. The most common complication of this is:
A) Pulmonary embolism B) Cerebral embolism C) Mesenteric embolism D) Peripheral embolism
Peripheral vascular disease (PVD) is characterized by: (Select all that apply.)
a. narrowing of arteries. b. obstruction of veins. c. involvement of all extremities only. d. defective valve function. e. production of thrombophlebitis.
The clinic nurse describes the respiratory system changes common to pregnancy to the new nurse. These changes include:
Select all answers that apply: A) An increased tidal volume B) A decreased airway resistance C) An increased chest circumference D) An increased airway resistance
The nurse is teaching a patient who has frequent urination associated with urgency about foods that should be avoided. The nurse tells the patient to avoid all EXCEPT
a. water c. carbonated drinks b. caffeinated beverages d. aspartame