Nokea
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.
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After teaching a group of nursing students about sympatholytic drugs, the instructor determines that the teaching was successful when the students identify which of the following as an example?
- A. Angiotensin-converting enzyme inhibitors
- B. a-adrenergic blockers
- C. b-adrenergic blockers
- D. Angiotensin receptor blockers
- E. Loop diuretics
Correct Answer: B,C
Rationale: a- and b-adrenergic blockers are classified as sympatholytic drugs.
A nurse is caring for a client with an arrhythmia. Which of the following would be most important for the nurse to do for a client with a life-threatening arrhythmia who is receiving an adrenergic blocking drug intravenously?
- A. Perform continuous cardiac monitoring
- B. Obtain pulse rate readings every 6 to 8 hours
- C. Assess respiratory rate every hour
- D. Obtain body temperature readings every 15 minutes
Correct Answer: A
Rationale: The patient with a life-threatening arrhythmia may receive an adrenergic blocking drug, such as propranolol, by the intravenous (IV) route. When these drugs are administered IV, cardiac monitoring is necessary. Patients not in a monitored unit are usually transferred to one as soon as possible. When these drugs are administered for a life-threatening arrhythmia, it is important to monitor the patient continuously with cardiac, blood pressure, and respiratory rate monitoring frequently.
A nurse is caring for a client who has been prescribed propranolol for angina. After administering the drug, which of the following would the nurse do?
- A. Ask about relief of symptoms and record responses on the chart
- B. Determine signs of infection in the client
- C. Monitor for sudden decrease in urine output
- D. Monitor for sudden increase in intraocular pressure
Correct Answer: A
Rationale: The nurse should ask about the relief of symptoms and record the responses on the client's chart. Determining the signs of infection in the client is part of the nurse's preadministration assessment, not the ongoing assessment. The nurse need not monitor the client for a sudden decrease in urine output and a sudden increase in intraocular pressure for a client receiving propranolol therapy for angina.
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 client uses levodopa for treatment of Parkinson's disease. The client is now prescribed an adrenergic blocking agent. The nurse would assess the client for which of the following?
- A. Decreased effect of levodopa
- B. Increased effect of adrenergic blocker
- C. Increased risk of levodopa toxicity
- D. Decreased risk of psychotic behavior
Correct Answer: A
Rationale: When levodopa and adrenergic blockers are administered together, the effect of the levodopa is decreased. Therefore, the client's Parkinson's disease may not be controlled as effectively as before. The effect of the adrenergic blocker is not increased, nor is the risk for levodopa toxicity. The client is not experiencing psychotic behavior.