HESI RN
Pharmacology HESI
1. A client with a prescription to take theophylline (Theo-24) daily has been given medication instructions by the nurse. The nurse determines that the client needs further information about the medication if the client states that he or she will:
- A. Drink at least 2 L of fluid per day.
- B. Take the daily dose at bedtime.
- C. Avoid changing brands of the medication without health care provider (HCP) approval.
- D. Avoid over-the-counter (OTC) cough and cold medications unless approved by the HCP.
Correct answer: B
Rationale: The correct answer is B. Taking theophylline at bedtime is inappropriate because it can cause insomnia. The medication should be taken early in the morning to avoid disrupting sleep patterns. It is important to follow the healthcare provider's instructions regarding the timing of the medication to achieve optimal therapeutic effects.
2. An older client recently has been taking cimetidine (Tagamet). The nurse monitors the client for which most frequent central nervous system side effect of this medication?
- A. Tremors
- B. Dizziness
- C. Confusion
- D. Hallucinations
Correct answer: C
Rationale: Older clients are particularly vulnerable to central nervous system side effects of cimetidine. The most frequent side effect is confusion. It is crucial for nurses to be vigilant in monitoring for confusion as it can impact the client's safety and well-being. While tremors, dizziness, and hallucinations are possible side effects, confusion is the most common in older clients taking cimetidine.
3. The client who chronically uses nonsteroidal anti-inflammatory drugs (NSAIDs) has been taking misoprostol (Cytotec). The nurse determines that the medication is having the intended therapeutic effect if which of the following is noted?
- A. Resolved diarrhea
- B. Relief of epigastric pain
- C. Decreased platelet count
- D. Decreased white blood cell count
Correct answer: B
Rationale: Misoprostol is a gastric protectant administered to clients using NSAIDs to prevent gastric mucosal injury. Relief of epigastric pain signifies the medication's therapeutic effect as it indicates a reduction in gastrointestinal symptoms associated with NSAID use.
4. When a client taking warfarin sodium (Coumadin) is prescribed ciprofloxacin (Cipro), the nurse should closely monitor the client for which potential effect of this drug interaction?
- A. Increased risk of bleeding
- B. Decreased warfarin effectiveness
- C. Increased risk of thrombosis
- D. Decreased ciprofloxacin effectiveness
Correct answer: A
Rationale: When ciprofloxacin (Cipro) is given with warfarin sodium (Coumadin), it can potentiate the effects of warfarin, leading to an increased risk of bleeding. Therefore, the nurse should closely monitor the client's INR levels and watch for signs of bleeding such as bruising, petechiae, or black tarry stools.
5. A client has been prescribed furosemide (Lasix), and the nurse is monitoring for adverse effects associated with this medication. Which of the following should the nurse recognize as a potential adverse effect? Select one that doesn't apply.
- A. Nausea
- B. Tinnitus
- C. Hypotension
- D. Hypokalemia
Correct answer: A
Rationale: Furosemide is a loop diuretic that can lead to adverse effects such as tinnitus, hypotension, and hypokalemia. While nausea is a common side effect of many medications, it is not typically associated with furosemide. Therefore, the nurse should recognize nausea as a potential adverse effect that doesn't apply to furosemide.
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