Nokea
A group of nursing students are reviewing information about adrenergic blockers in preparation for an examination. The students demonstrate understanding of the information when they identify which of the following as an a/b-adrenergic blocker?
- A. Phentolamine
- B. Bisoprolol
- C. Nadolol
- D. Carvedilol
- E. Labetalol
Correct Answer: D,E
Rationale: Carvedilol and labetalol are a/b-adrenergic blockers. Phentolamine is an a-adrenergic blocker. Bisoprolol and nadolol are b-adrenergic blockers.
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A nurse would closely monitor which client for an increase in possible adverse reactions after administering propranolol?
- A. Clients with asthma
- B. Clients with hyperlipidemia
- C. Clients with diabetes
- D. Clients with peptic ulcer disease
- E. Clients with migraine headaches
Correct Answer: A,C,D
Rationale: A nurse should carefully observe clients with asthma (bronchospasm can result with the use of nonselective b blockers) and diabetes (b blockers can mask the symptoms of hypoglycemia) during the use of propranolol (Inderal), a nonselective b blocker. The drug also should be used cautiously in clients with peptic ulcer disease.
A nurse is reviewing the medication orders for a client and notes an adrenergic blocker that is to be applied transdermally. Which medication would the nurse be preparing to administer?
- A. Methyldopa
- B. Clonidine
- C. Guanabenz
- D. Guanfacine
Correct Answer: B
Rationale: Clonidine is available in a transdermal formulation. Methyldopa may be administered IV or orally. Guanabenz and guanfacine are administered orally.
A nurse would administer phentolamine to a client diagnosed with which condition?
- A. Pheochromocytoma-induced hypertension
- B. Benign hypertension
- C. Preoperative hypertension
- D. Increased intraocular pressure
- E. Treatment of dopamine extravasation tissue damage
Correct Answer: A,C,E
Rationale: Phentolamine is an a-adrenergic blocker used in the treatment of pheochromocytoma-induced hypertension and preoperative hypertension and in the prevention and treatment of tissue damage caused by extravasation of dopamine.
A client with a cardiac problem is treated with b-adrenergic blocking drugs. Which of the following should the nurse identify as a cardiac reaction that impacts the body when a b-adrenergic blocking drug is given to the client?
- A. Vomiting
- B. Hyperglycemia
- C. Nausea
- D. Vertigo
Correct Answer: D
Rationale: The nurse should identify vertigo as the cardiac reaction that impacts the body when a b-adrenergic blocking drug is given to the client. Vomiting, nausea, and hyperglycemia are not cardiac reactions; they are gastrointestinal reactions that are observed when the client is administered b-adrenergic blocking drugs.
When caring for a client who is receiving acebutolol (Sectral), the nurse would ensure that which of the following is avoided to promote optimal effectiveness of acebutolol?
- A. Sertraline (Zoloft)
- B. Phenelzine (Nardil)
- C. Naproxen (Naprosyn)
- D. Oxaprezin (Daypro)
- E. Fluoxetine (Prozac)
Correct Answer: C,D
Rationale: NSAIDs (naproxen and oxaprozin) can result in decreased effects of b blockers such as acebutolol.