Nokea
A client with cardiac arrhythmia is treated with a centrally acting antiadrenergic drug. The nurse would assess the client for which of the following as a possible adverse reaction?
- A. Lightheadedness
- B. Malaise
- C. Bradycardia
- D. Weakness
Correct Answer: B
Rationale: The nurse should monitor the client for malaise as a generalized reaction with antiadrenergic drugs that are centrally acting when administered to clients with cardiac arrhythmias. Lightheadedness, bradycardia, and weakness are the adverse reactions associated with peripherally acting antiadrenergic drugs.
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A nurse recognizes the class of medication being administered to help plan ongoing assessment and client education. The nurse would identify which drug as an example of a b-adrenergic blocker?
- A. Carvedilol (Coreg)
- B. Propranolol (Inderal)
- C. Metoprolol (Lopressor)
- D. Atenolol (Tenormin)
- E. Labetalol (Trandate)
Correct Answer: B,C,D
Rationale: Propranolol, metoprolol, and atenolol are b-adrenergic blockers, but carvedilol and labetalol are a/b-adrenergic blockers.
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 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 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.