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. In a client with chronic renal failure receiving epoetin alfa (Epogen, Procrit), which laboratory result would indicate a therapeutic effect of the medication?
- A. Hematocrit of 32%
- B. Platelet count of 400,000 cells/mm³
- C. White blood cell count of 6000 cells/mm³
- D. Blood urea nitrogen (BUN) level of 15 mg/dL
Correct answer: A
Rationale: A hematocrit of 32% indicates a therapeutic effect of epoetin alfa in a client with chronic renal failure. Epoetin alfa is used to treat anemia in these patients by stimulating red blood cell production, leading to an increase in the hematocrit level. Monitoring the hematocrit is essential to assess the response to epoetin alfa therapy.
3. After administering acetylcysteine (Mucomyst), 20% solution diluted in 0.9% normal saline by nebulizer, the nurse should have which item available for potential use?
- A. Ambu bag
- B. Intubation tray
- C. Nasogastric tube
- D. Suction equipment
Correct answer: D
Rationale: Acetylcysteine is administered via inhalation as a mucolytic. It helps liquefy secretions, making it easier for the client to clear them. However, in some cases, the increased volume of liquefied secretions may be challenging for the client to manage, leading to the potential need for suction equipment to assist in clearing the airway. Therefore, the nurse should have suction equipment available after administering acetylcysteine to address any issues related to excessive secretions.
4. The home health care nurse is visiting a client who was recently diagnosed with type 2 diabetes mellitus. The client is prescribed repaglinide (Prandin) and metformin (Glucophage) and asks the nurse to explain these medications. The nurse should reinforce which instructions to the client? Select one that doesn't apply.
- A. Diarrhea can occur secondary to the metformin.
- B. The repaglinide is not taken if a meal is skipped.
- C. The repaglinide is taken 30 minutes before eating.
- D. Nausea and vomiting
Correct answer: D
Rationale: Repaglinide is a rapid-acting oral hypoglycemic that should be taken before meals and withheld if the client does not eat. Hypoglycemia is a side effect of repaglinide, so carrying a simple sugar is essential. Metformin decreases hepatic glucose production and can cause diarrhea. Muscle pain may occur as an adverse effect and should be reported to the HCP.
5. The client has begun medication therapy with pancrelipase (Pancrease MT). The nurse evaluates that the medication is having the optimal intended benefit if which effect is observed?
- A. Weight loss
- B. Relief of heartburn
- C. Reduction of steatorrhea
- D. Absence of abdominal pain
Correct answer: C
Rationale: Pancrelipase (Pancrease MT) is a pancreatic enzyme replacement therapy used to aid digestion in clients with pancreatic insufficiency. One of the key goals of pancrelipase therapy is to reduce the amount of undigested fat in the stool, known as steatorrhea. Therefore, the nurse should evaluate the effectiveness of pancrelipase by looking for a reduction in steatorrhea, indicating improved digestion and absorption of fats.
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