HESI RN
HESI Pharmacology Practice Exam
1. Colcrys (colchicine) is prescribed for a client with a diagnosis of gout. The nurse reviews the client's medical history in the health record, knowing that the medication would be contraindicated in which disorder?
- A. Myxedema
- B. Renal failure
- C. Hypothyroidism
- D. Diabetes mellitus
Correct answer: B
Rationale: Colchicine is contraindicated in clients with severe gastrointestinal, renal, hepatic, or cardiac disorders, or blood dyscrasias. Renal failure is a condition where the kidneys fail to function adequately, leading to the accumulation of toxins in the body. Since colchicine is contraindicated in clients with renal disorders, including renal failure, it could exacerbate the condition and worsen the client's health. Myxedema, hypothyroidism, and diabetes mellitus are not contraindications for colchicine use. While these conditions may require caution or monitoring when administering colchicine, they are not absolute contraindications like renal failure.
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 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 client presenting with complaints of not feeling well is seen in a clinic. The client is taking several medications for the control of heart disease and hypertension, including a beta-blocker, digoxin (Lanoxin), and a diuretic. A tentative diagnosis of digoxin toxicity is made. Which of the following assessment data would support this diagnosis?
- A. Dyspnea, edema, and palpitations
- B. Chest pain, hypotension, and paresthesia
- C. Double vision, loss of appetite, and nausea
- D. Constipation, dry mouth, and sleep disorder
Correct answer: C
Rationale: The correct answer is C. Double vision, loss of appetite, and nausea are classic signs of digoxin toxicity. Other signs may include bradycardia, visual disturbances, and confusion. These symptoms are indicators that the client may be experiencing adverse effects due to elevated levels of digoxin in the system, requiring immediate medical attention to prevent serious complications.
5. 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.
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