Nokea
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.
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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.
A nurse is caring for a client with benign prostatic hypertrophy (BPH). Which of the following would the nurse expect to be prescribed as treatment?
- A. Doxazosin (Cardura)
- B. Alfuzosin (Uroxatral)
- C. Tamsulosin (Flomax)
- D. Prazosin (Minipress)
- E. Mecamylamine (Inversine)
Correct Answer: A,B,C
Rationale: Doxazosin, alfuzosin, and tamsulosin are peripherally acting adrenergic blocking drugs used in the treatment of BPH.
A nurse is preparing to administer a centrally acting adrenergic blocker to a group of clients. The nurse would be especially cautious when administering the drug to which client?
- A. Client with diabetes
- B. Client with chronic bronchitis
- C. Client with renal function impairment
- D. Client with impaired hepatic function
Correct Answer: C
Rationale: The nurse should administer centrally acting adrenergic blockers cautiously to clients with renal function impairment. The a/b-adrenergic blocking drugs should be used cautiously in clients with diabetes, chronic bronchitis, and impaired hepatic function.
A nurse understands that while most b-adrenergic receptors are found in the heart, they are also commonly found in which other organs?
- A. Pancreas
- B. Eyes
- C. Liver
- D. Lungs
- E. Skin
Correct Answer: B,D
Rationale: b-adrenergic receptors are also found in the eyes and lungs. The blockage of these receptors can be beneficial in treatment of glaucoma or cause adverse reactions in the lungs (bronchospasms).
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.