Nokea
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.
You may also like to solve these questions
A client is receiving nadolol as part of the treatment plan for hypertension. The client reports dizziness on standing. The nurse checks the client's blood pressure lying, sitting, and standing and notes a significant drop in the readings. When developing this client's plan of care, which nursing diagnosis would the nurse most likely identify?
- A. Risk for Injury
- B. Ineffective Tissue Perfusion
- C. Impaired Comfort
- D. Decreased Cardiac Output
Correct Answer: A
Rationale: The client is experiencing orthostatic hypotension, placing the client at risk for falls and injury. Ineffective Tissue Perfusion would be appropriate if the client was experiencing more rapid changes in blood pressure and/or changes in pulse and heart rate. Impaired Comfort would apply if the client was complaining of other adverse reactions such as dry mouth or constipation. There is no information provided that would suggest decreased cardiac output.
A nurse administers atenolol (Tenormin) to a client suffering an acute MI based on the understanding that this drug will result in which of the following changes in the client?
- A. Increase the heart's excitability
- B. Decrease the heart's workload
- C. Increase the heart's oxygen consumption
- D. Decrease heart rate
- E. Constrict blood vessels
Correct Answer: B,D
Rationale: Atenolol (Tenormin) is a b-adrenergic blocking drug. Blockade of b-adrenergic receptors results in decreased heart rate, dilation of blood vessels, a decrease in the heart's excitability, and a decrease in cardiac workload and oxygen consumption and provides membrane-stabilizing effects.
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.
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.
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.