HESI RN
HESI Pharmacology Practice Exam
1. A client is receiving an intravenous (IV) infusion of an antineoplastic medication. During the infusion, the client complains of pain at the insertion site. The nurse notes redness and swelling at the site, along with a slowed infusion rate. What is the appropriate action for the nurse to take?
- A. Notify the healthcare provider.
- B. Administer pain medication to reduce discomfort.
- C. Apply ice and maintain the infusion rate as prescribed.
- D. Elevate the extremity of the IV site and slow the infusion rate.
Correct answer: A
Rationale: When a client complains of pain at the IV insertion site, and there are signs of extravasation such as redness and swelling, it is crucial to notify the healthcare provider immediately. Extravasation of antineoplastic medications can cause tissue damage, pain, and necrosis if they escape into surrounding tissues. Prompt action is necessary to prevent further complications and ensure appropriate management of the situation. Administering pain medication, applying ice, or elevating the extremity are not appropriate actions in cases of suspected extravasation. These actions do not address the underlying issue of potential tissue damage and necrosis that can occur due to the leakage of antineoplastic medication.
2. A healthcare provider is preparing to administer a prescribed dose of digoxin (Lanoxin) to a client. Before administering the medication, the healthcare provider should:
- A. Measure the client's blood pressure.
- B. Check the client's heart rate.
- C. Assess the client's respiratory rate.
- D. Check the client's oxygen saturation level.
Correct answer: B
Rationale: Before administering digoxin (Lanoxin), the healthcare provider should check the client's heart rate. Monitoring the heart rate is crucial because if it is below 60 beats per minute, the medication should be withheld, and the healthcare provider must be informed. While blood pressure, respiratory rate, and oxygen saturation are essential assessments, they are not the primary focus before administering digoxin.
3. A client who is receiving digoxin (Lanoxin) daily has a serum potassium level of 3.0 mEq/L and is complaining of anorexia. A healthcare provider prescribes a digoxin level to rule out digoxin toxicity. A nurse checks the results, knowing that which of the following is the therapeutic serum level (range) for digoxin?
- A. 3 to 5 ng/mL
- B. 0.5 to 2 ng/mL
- C. 1.2 to 2.8 ng/mL
- D. 3.5 to 5.5 ng/mL
Correct answer: B
Rationale: The therapeutic serum level for digoxin ranges from 0.5 to 2 ng/mL. This range is considered optimal for therapeutic effects while minimizing the risk of toxicity. Levels above 2 ng/mL may lead to digoxin toxicity, which can manifest as anorexia among other symptoms. Therefore, the nurse should be vigilant in monitoring the digoxin levels to ensure the client's safety and therapeutic effectiveness of the medication.
4. A healthcare professional prepares to reinforce instructions to a client who is taking allopurinol (Zyloprim). The healthcare professional plans to include which of the following in the instructions?
- A. Instruct the client to drink 3000 mL of fluid per day.
- B. Instruct the client to take the medication with food.
- C. Inform the client that the effect of the medication will occur immediately.
- D. Instruct the client that, if swelling of the lips occurs, this is a normal expected response.
Correct answer: A
Rationale: Allopurinol is an antigout medication that works by reducing the production of uric acid in the body. To prevent kidney stones and promote the excretion of uric acid, increased fluid intake is essential. Instructing the client to drink 3000 mL of fluid per day helps to reduce the risk of kidney stones and assists in the elimination of uric acid, thereby enhancing the effectiveness of allopurinol therapy.
5. 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.
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