HESI RN
Pharmacology HESI Quizlet
1. When monitoring a client for acute toxicity associated with bethanechol chloride (Urecholine), what sign should the nurse check for to indicate toxicity?
- A. Dry skin
- B. Dry mouth
- C. Bradycardia
- D. Signs of dehydration
Correct answer: C
Rationale: The correct answer is C: Bradycardia. Toxicity from bethanechol chloride (Urecholine) can lead to excessive muscarinic stimulation, resulting in manifestations like salivation, sweating, involuntary urination and defecation, bradycardia, and severe hypotension. When facing toxicity, treatment involves supportive measures and administering atropine sulfate subcutaneously or intravenously.
2. A healthcare professional is preparing to administer digoxin (Lanoxin), 0.125 mg orally, to a client with heart failure. Which vital sign is most important for the healthcare professional to check before administering the medication?
- A. Heart rate
- B. Temperature
- C. Respirations
- D. Blood pressure
Correct answer: A
Rationale: Before administering digoxin, it is essential to assess the client's heart rate as this medication directly affects cardiac function. Monitoring the heart rate helps identify if it is within the acceptable range for administering digoxin. A pulse rate below 60 beats per minute warrants withholding the medication to prevent potential adverse effects like bradycardia or cardiac arrhythmias.
3. A client with heart failure is prescribed furosemide (Lasix) and digoxin (Lanoxin). Which instruction should the nurse include in the client's teaching plan?
- A. Avoid foods high in potassium.
- B. Report a pulse rate less than 60 beats per minute.
- C. Take the medications in the morning.
- D. Weigh yourself daily.
Correct answer: B
Rationale: The correct answer is B. The nurse should instruct the client to report a pulse rate less than 60 beats per minute, as it could indicate digoxin toxicity. Consuming potassium-rich foods is encouraged due to the potential for furosemide (Lasix) to cause hypokalemia. The medications should be taken in the morning to prevent nocturia. Weighing oneself daily is important to monitor for fluid retention, a crucial aspect in managing heart failure. Therefore, choices A, C, and D are incorrect as they do not address the specific teaching point related to digoxin and its potential toxicity.
4. A client is receiving vancomycin (Vancocin). Which of the following is the most important action for the nurse to take?
- A. Monitor the client for signs of nephrotoxicity.
- B. Monitor the client for signs of ototoxicity.
- C. Ensure adequate hydration.
- D. Administer the medication with food.
Correct answer: A
Rationale: The most important action for the nurse to take when a client is receiving vancomycin is to monitor for signs of nephrotoxicity. Vancomycin can cause kidney damage, so monitoring kidney function and signs of nephrotoxicity are crucial to prevent harm. While monitoring for ototoxicity and ensuring adequate hydration are important nursing actions, they are not as critical as preventing nephrotoxicity when administering vancomycin.
5. A client is prescribed phenytoin (Dilantin) for seizure control. Which statement by the client indicates an understanding of the medication?
- A. I should brush and floss my teeth regularly.
- B. I should take the medication with antacids.
- C. I can stop taking the medication once my seizures are controlled.
- D. I should avoid drinking milk while taking this medication.
Correct answer: A
Rationale: The correct statement is 'I should brush and floss my teeth regularly.' Phenytoin (Dilantin) can cause gingival hyperplasia, so maintaining good oral hygiene is essential. Taking the medication with antacids can affect its absorption, so it should not be done. It is crucial not to stop taking the medication abruptly, even if seizures are controlled. There is no specific requirement to avoid milk while taking phenytoin (Dilantin).
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