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. What instruction should be included in the client's teaching plan when prescribed montelukast (Singulair) for asthma?
- A. Take the medication as needed for asthma attacks.
- B. Take the medication in the evening.
- C. Increase fluid intake while taking this medication.
- D. Use the medication before exercise.
Correct answer: B
Rationale: The correct instruction to include in the teaching plan for a client prescribed montelukast (Singulair) is to take the medication in the evening. Montelukast is most effective when taken in the evening to provide optimal control of asthma symptoms. It is not intended for use as a rescue medication for asthma attacks. There is no specific recommendation to increase fluid intake or use the medication before exercise in relation to montelukast therapy.
3. A client with chronic pain is prescribed transdermal fentanyl (Duragesic) patches. Which instruction should the nurse include in the teaching plan?
- A. Apply the patch to a different site each time.
- B. Avoid using heating pads over the patch.
- C. Change the patch every 72 hours.
- D. Remove the old patch before applying the new one.
Correct answer: B
Rationale: Clients using transdermal fentanyl (Duragesic) patches should avoid using heating pads over the patch as heat can increase the release of the medication, potentially leading to overdose. The patch should be applied to a different site each time, changed every 72 hours, and the old patch should be removed before applying a new one to prevent accidental overdose or excessive drug absorption.
4. The clinic nurse is performing an admission assessment on a client. The nurse notes that the client is taking azelaic acid (Azelex). Because of the medication prescription, the nurse would suspect that the client is being treated for:
- A. Acne
- B. Eczema
- C. Hair loss
- D. Herpes simplex
Correct answer: A
Rationale: Azelaic acid (Azelex) is a topical medication used to treat mild to moderate acne. It works by suppressing the growth of Propionibacterium acnes and decreasing the proliferation of keratinocytes in the skin. Therefore, if a client is prescribed azelaic acid, the nurse would suspect that the client is being treated for acne.
5. Before administering Methylergonovine (Methergine) to a client with postpartum hemorrhage caused by uterine atony, the nurse checks which of the following as the important client parameter?
- A. Temperature
- B. Lochial flow
- C. Urine output
- D. Blood pressure
Correct answer: D
Rationale: Methylergonovine (Methergine) acts by stimulating uterine contractions and causing vasoconstriction. As vasoconstriction can potentially impact blood pressure, it is crucial to check the client's blood pressure before administering Methylergonovine to monitor for any hypertensive effects.
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