HESI RN
Pharmacology HESI
1. 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.
2. The nurse provides medication instructions to an older hypertensive client who is taking 20 mg of lisinopril (Prinivil, Zestril) orally daily. The nurse evaluates the need for further teaching when the client states which of the following?
- A. I can skip a dose once a week.
- B. I need to change my position slowly.
- C. I take the pill after breakfast each day.
- D. If I get a bad headache, I should call my doctor immediately.
Correct answer: A
Rationale: Lisinopril should be taken daily as prescribed and not skipped. Skipping doses can lead to ineffective treatment.
3. When providing instructions to a client taking ciprofloxacin (Cipro), which of the following should the nurse include in the teaching plan?
- A. Avoid taking the medication with milk or antacids.
- B. Take the medication with a multivitamin.
- C. Consume extra dairy products while taking this medication.
- D. Take the medication with food if gastrointestinal upset occurs.
Correct answer: A
Rationale: The correct answer is to avoid taking ciprofloxacin (Cipro) with milk or antacids. These can interfere with the medication's absorption. Consuming extra dairy products or taking it with a multivitamin is not recommended for the same reason. If gastrointestinal upset occurs, the medication can be taken with food to help alleviate the symptoms.
4. A client with type 2 diabetes mellitus is prescribed glipizide (Glucotrol). Which instruction should the nurse include in the teaching plan?
- A. Take the medication before a meal.
- B. Monitor for signs of hypoglycemia.
- C. Avoid alcohol consumption while taking this medication.
- D. Take the medication before bedtime.
Correct answer: B
Rationale: The correct instruction the nurse should include in the teaching plan for a client prescribed glipizide (Glucotrol) is to monitor for signs of hypoglycemia. Glipizide stimulates insulin release from the pancreas, which can lead to hypoglycemia. It is usually taken before a meal, not necessarily on an empty stomach. Alcohol consumption should be avoided to prevent interactions with the medication. Taking the medication before bedtime is not the typical recommendation.
5. The client with a gastric ulcer has a prescription for sucralfate (Carafate), 1 g by mouth four times daily. The nurse schedules the medication for which times?
- A. With meals and at bedtime
- B. Every 6 hours around the clock
- C. One hour after meals and at bedtime
- D. One hour before meals and at bedtime
Correct answer: D
Rationale: Sucralfate is a gastric protectant that forms a protective coating over the ulcer. Administering sucralfate 1 hour before meals and at bedtime is important to create a barrier that protects the ulcer from gastric acid and mechanical irritation. This timing allows sucralfate to effectively coat the ulcer site and provide the desired therapeutic effect, enhancing its efficacy in promoting ulcer healing and symptom relief.
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