HESI RN
HESI Pharmacology Quizlet
1. 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.
2. A client has been started on long-term therapy with rifampin (Rifadin). A nurse teaches the client that the medication:
- A. Should always be taken with food or antacids
- B. Should be double-dosed if one dose is forgotten
- C. Causes orange discoloration of sweat, tears, urine, and feces
- D. May not be discontinued independently if symptoms are gone in 3 months
Correct answer: C
Rationale: Rifampin causes orange-red discoloration of body secretions, including sweat, tears, urine, and feces. It can also permanently stain soft contact lenses. It is essential to take rifampin exactly as directed and not discontinue it without consulting the healthcare provider.
3. Prednisone is prescribed for a client with diabetes mellitus who is taking Humulin neutral protamine Hagedorn (NPH) insulin daily. Which of the following prescription changes does the nurse anticipate during therapy with prednisone?
- A. An additional dose of prednisone daily
- B. A decreased amount of daily Humulin NPH insulin
- C. An increased amount of daily Humulin NPH insulin
- D. The addition of an oral hypoglycemic medication daily
Correct answer: C
Rationale: When prednisone is prescribed for a client with diabetes mellitus who is taking Humulin NPH insulin daily, the nurse should anticipate an increased amount of daily Humulin NPH insulin. Prednisone, a glucocorticoid, can elevate blood glucose levels, requiring an increase in insulin dosage to maintain optimal blood sugar control.
4. 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.
5. Sildenafil (Viagra) is prescribed to treat a client with erectile dysfunction. A nurse reviews the client's medical record and would question the prescription if which of the following is noted in the client's history?
- A. Neuralgia
- B. Insomnia
- C. Use of nitroglycerin
- D. Use of multivitamins
Correct answer: C
Rationale: The correct answer is C. Sildenafil (Viagra) enhances the vasodilating effect of nitric oxide and is contraindicated with the concurrent use of organic nitrates and nitroglycerin. Using nitroglycerin together with Viagra can lead to severe hypotension and cardiovascular collapse, making it unsafe to combine both medications.
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