Nokea
Which of the following adverse reactions would the nurse include in the teaching plan for a client who is prescribed labetalol?
- A. Hypoglycemia
- B. Insomnia
- C. Drowsiness
- D. Tachycardia
- E. Fatigue
Correct Answer: B,C,E
Rationale: Adverse effects from the use of a/b-adrenergic blockers like labetalol include fatigue, dizziness, hypotension, drowsiness, insomnia, weakness, diarrhea, dyspnea, chest pain, bradycardia, and skin rash.
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A nurse would administer phentolamine cautiously to a client with which condition?
- A. Recent MI
- B. Type 1 diabetes
- C. Renal failure
- D. Hepatic failure
- E. Peripheral artery disease
Correct Answer: A,C
Rationale: Phentolamine is an a-adrenergic blocker that should be used cautiously in clients who are pregnant or lactating, had a recent MI, or have renal failure or Reynaud's disease.
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.
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.
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 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).