HESI RN
Pharmacology HESI
1. A healthcare professional prepares to reinforce instructions to a client who is taking allopurinol (Zyloprim). The healthcare professional plans to include which of the following in the instructions?
- A. Instruct the client to drink 3000 mL of fluid per day.
- B. Instruct the client to take the medication with food.
- C. Inform the client that the effect of the medication will occur immediately.
- D. Instruct the client that, if swelling of the lips occurs, this is a normal expected response.
Correct answer: A
Rationale: Allopurinol is an antigout medication that works by reducing the production of uric acid in the body. To prevent kidney stones and promote the excretion of uric acid, increased fluid intake is essential. Instructing the client to drink 3000 mL of fluid per day helps to reduce the risk of kidney stones and assists in the elimination of uric acid, thereby enhancing the effectiveness of allopurinol therapy.
2. While assisting in caring for a pregnant client receiving intravenous magnesium sulfate for preeclampsia management, a nurse notes the client's absent deep tendon reflexes. What determination should the nurse make based on this data?
- A. The magnesium sulfate is effective.
- B. The infusion rate needs to be increased.
- C. The client is experiencing cerebral edema.
- D. The client is experiencing magnesium toxicity.
Correct answer: D
Rationale: When a pregnant client receiving intravenous magnesium sulfate for preeclampsia management exhibits absent deep tendon reflexes, this indicates magnesium toxicity. Magnesium toxicity can occur as a complication of magnesium sulfate therapy, leading to suppressed reflexes. It is crucial for the nurse to recognize this sign promptly and report it to prevent further complications or harm to the client.
3. Intravenous heparin therapy is prescribed for a client. While implementing this prescription, a nurse ensures that which of the following medications is available on the nursing unit?
- A. Protamine sulfate
- B. Potassium chloride
- C. Phytonadione (vitamin K)
- D. Aminocaproic acid (Amicar)
Correct answer: A
Rationale: Protamine sulfate is the antidote for heparin, working to reverse its effects in case of excessive bleeding. It should be readily available when administering heparin to manage any potential bleeding complications effectively. Potassium chloride is not the antidote for heparin and is typically used to correct low potassium levels. Phytonadione (vitamin K) is used to reverse the effects of warfarin, not heparin. Aminocaproic acid (Amicar) is used to treat or prevent excessive bleeding but is not the antidote for heparin.
4. A histamine (H2)-receptor antagonist will be prescribed for a client. The nurse understands that which medications are H2-receptor antagonists? Select one that doesn't apply.
- A. Nizatidine (Axid)
- B. Ranitidine (Zantac)
- C. Famotidine (Pepcid)
- D. Ibuprofen (Motrin)
Correct answer: D
Rationale: H2-receptor antagonists like Nizatidine, Ranitidine, and Famotidine are used to suppress gastric acid secretion, relieve heartburn symptoms, and prevent complications of peptic ulcer disease. Ibuprofen, on the other hand, is a nonsteroidal anti-inflammatory drug (NSAID) commonly used for pain relief and inflammation, but it is not an H2-receptor antagonist. It is essential to differentiate between these medication classes to ensure appropriate treatment for gastrointestinal conditions.
5. The client has reinforced instructions for taking cholestyramine (Questran). Which statement indicates a need for further instructions?
- A. I will continue taking vitamin supplements.
- B. This medication will help lower my cholesterol.
- C. This medication should only be taken with water.
- D. A high-fiber diet is important while taking this medication.
Correct answer: C
Rationale: The correct answer is C because cholestyramine should not only be taken with water. Flavored products or fruit juices can improve the taste. Choices A, B, and D are all correct statements. It is important for the client to continue taking vitamin supplements, understand that cholestyramine helps lower cholesterol, and maintain a high-fiber diet while taking this medication to enhance its effectiveness.
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