HESI LPN
HESI Practice Test Pharmacology
1. When planning to administer the antiulcer GI agent sucralfate, what instruction should the nurse provide regarding administration?
- A. Administer sucralfate once a day
- B. Assess for secondary candida infection
- C. Monitor electrolyte imbalance
- D. Give sucralfate on an empty stomach
Correct answer: D
Rationale: Sucralfate is most effective when taken on an empty stomach. This allows the medication to form a protective layer over the ulcer, promoting healing and symptom relief. Administering sucralfate with or after meals may reduce its efficacy as it may bind to food instead of coating the ulcer site.
2. In the emergency department, a child is admitted for accidental ingestion of a poison. The practical nurse (PN) should know that inducing vomiting is recommended for which child?
- A. An 8-month-old who ingested four to six ibuprofen tablets
- B. A 3-year-old who drank an unknown amount of charcoal lighter fluid
- C. A 16-month-old who ingested 2 ounces of acetaminophen elixir
- D. A 2-year-old who ate a handful of automatic dishwasher detergent
Correct answer: C
Rationale: Inducing emesis is recommended for the child who ingested a large dose of acetaminophen elixir because this medication is hepatotoxic. Acetaminophen overdose can lead to severe liver damage, and prompt removal from the stomach can help reduce absorption and potential harm.
3. A client with a history of hypertension is prescribed hydrochlorothiazide. The practical nurse should monitor the client for which potential adverse effect?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hypernatremia
- D. Hyponatremia
Correct answer: B
Rationale: Corrected Rationale: Hydrochlorothiazide is a diuretic that can lead to potassium loss, resulting in hypokalemia. Monitoring for hypokalemia is essential because it can cause various complications such as cardiac dysrhythmias. Therefore, the practical nurse should closely watch for signs and symptoms of low potassium levels in clients taking hydrochlorothiazide. Incorrect Rationale for Other Choices: A. Hyperkalemia is not typically associated with hydrochlorothiazide use; instead, it is more commonly linked to medications like ACE inhibitors or potassium-sparing diuretics. C. Hypernatremia is unlikely with hydrochlorothiazide use as it tends to cause sodium loss. D. Hyponatremia is more commonly associated with conditions where there is excessive water intake or syndrome of inappropriate antidiuretic hormone secretion (SIADH), rather than with hydrochlorothiazide use.
4. After receiving the third dose of a new oral anticoagulant prescription, which action should the nurse implement? Select all that apply.
- A. Notify the healthcare provider of the finding
- B. Provide a PRN NSAID for gum discomfort
- C. Review the most recent coagulation lab values
- D. Complete a medication variance report
Correct answer: C
Rationale: Reviewing the most recent coagulation lab values is crucial after receiving multiple doses of a new oral anticoagulant to ensure the patient is within the desired therapeutic range and to prevent adverse events related to over or under-anticoagulation. It is essential to monitor these values closely to adjust the dosage if needed. Notifying the healthcare provider of any concerning findings is important, but it may not be the immediate priority after receiving the third dose. Providing a PRN NSAID for gum discomfort is not typically indicated with oral anticoagulant therapy, as it may increase the risk of bleeding. Completing a medication variance report is more relevant in cases of medication errors or discrepancies, which may not apply in this scenario.
5. A client with a diagnosis of generalized anxiety disorder is prescribed hydroxyzine. The nurse should instruct the client that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Drowsiness. Hydroxyzine is known to cause drowsiness, so clients should be advised to avoid activities like driving until they understand how the medication affects them. Choices B, C, and D are incorrect because dry mouth, nausea, and headache are not commonly associated with hydroxyzine use. It is crucial for the client to be aware of the potential drowsiness to ensure their safety and well-being while taking this medication.
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