HESI RN
HESI Pharmacology Quizlet
1. A healthcare professional prepares to administer sodium polystyrene sulfonate (Kayexalate) to a client. Before administering the medication, the professional reviews the action of the medication and understands that it:
- A. Releases bicarbonate in exchange for primarily sodium ions
- B. Releases sodium ions in exchange for primarily potassium ions
- C. Releases potassium ions in exchange for primarily sodium ions
- D. Releases sodium ions in exchange for primarily bicarbonate ions
Correct answer: B
Rationale: Sodium polystyrene sulfonate, such as Kayexalate, is a cation exchange resin that functions by releasing sodium ions in exchange for primarily potassium ions. This medication is commonly used to treat hyperkalemia, a condition characterized by elevated levels of potassium in the blood.
2. A client is receiving bethanechol chloride (Urecholine). The nurse monitors the client for adverse effects of the medication and should observe for which of the following?
- A. Bradycardia
- B. Constipation
- C. Hypertension
- D. Dry mouth
Correct answer: A
Rationale: Corrected Rationale: Bethanechol chloride (Urecholine) stimulates muscarinic receptors, which can lead to bradycardia as an adverse effect. Monitoring for bradycardia is crucial when administering this medication. Constipation, hypertension, and dry mouth are not typically associated with the effects of bethanechol chloride. Bradycardia is the correct adverse effect to monitor for, making option A the correct answer. Constipation, hypertension, and dry mouth are not commonly seen with bethanechol chloride and are therefore incorrect choices.
3. A client is taking ticlopidine hydrochloride (Ticlid). The nurse tells the client to avoid which of the following while taking this medication?
- A. Vitamin C
- B. Vitamin D
- C. Acetaminophen (Tylenol)
- D. Acetylsalicylic acid (aspirin)
Correct answer: D
Rationale: Ticlopidine hydrochloride is a platelet aggregation inhibitor. Aspirin or any aspirin-containing product should be avoided as they can precipitate or aggravate bleeding by affecting platelet function and increasing the risk of bleeding complications.
4. A client has been taking isoniazid (INH) for 2 months. The client complains to a nurse about numbness, paresthesias, and tingling in the extremities. The nurse interprets that the client is experiencing:
- A. Hypercalcemia
- B. Peripheral neuritis
- C. Small blood vessel spasm
- D. Impaired peripheral circulation
Correct answer: B
Rationale: The client's symptoms of numbness, paresthesias, and tingling in the extremities indicate peripheral neuritis, a common side effect of isoniazid (INH). This condition can be managed by supplementing with pyridoxine (vitamin B6) to minimize the symptoms.
5. 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.
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