HESI LPN
HESI Practice Test Pharmacology
1. The practical nurse is assigned a client on digoxin therapy. Which finding is likely to predispose this client to developing digoxin toxicity?
- A. Hyponatremia
- B. Hypernatremia
- C. Hyperkalemia
- D. Hypokalemia
Correct answer: D
Rationale: Hypokalemia predisposes a client on digoxin to digoxin toxicity. Symptoms of digoxin toxicity include abdominal pain, anorexia, nausea, vomiting, visual disturbances, bradycardia, and atrioventricular (AV) dissociation. Therefore, assessment of serum potassium levels and prompt correction of hypokalemia are crucial interventions for clients taking digoxin.
2. A client with pulmonary tuberculosis has been taking rifampin for 3 weeks. The client reports orange urine. What should be the nurse's next action?
- A. Notify the client's health care provider.
- B. Inform the client that this is not harmful.
- C. Assess the client for other signs of nephrotoxicity.
- D. Monitor the client's most recent creatinine level.
Correct answer: B
Rationale: The correct action for the nurse to take when a client reports orange urine after taking rifampin is to inform the client that this change is not harmful. Rifampin is known to cause orange discoloration of urine, which is a harmless side effect. There is no need to notify the health care provider as this is an expected outcome. Monitoring creatinine levels or assessing for nephrotoxicity is unnecessary in this situation, as rifampin does not typically cause kidney damage.
3. A client with hypertension is prescribed metoprolol. The healthcare provider should monitor the client for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Hyperglycemia
- D. Hyponatremia
Correct answer: A
Rationale: Metoprolol is a beta-blocker that works by slowing the heart rate and reducing blood pressure. One of the potential side effects of metoprolol is bradycardia, which is a slow heart rate. Monitoring for bradycardia is crucial as it can be an adverse effect of this medication.
4. A client is admitted to a long-term care facility, and the nurse and a new employee are conducting medication reconciliation. The nurse notes that oxybutynin has been prescribed. The nurse realizes the new employee understands the drug's effect if the new employee explains that this medication is prescribed to treat which condition?
- A. Pain
- B. Depression
- C. Overactive bladder
- D. Chronic anxiety
Correct answer: C
Rationale: The correct answer is C: Overactive bladder. Oxybutynin is prescribed to treat overactive bladder by reducing muscle spasms of the bladder. It is classified as an anticholinergic medication. Choices A, B, and D are incorrect. Oxycodone is an opioid used for pain management. Bupropion is an antidepressant used to treat depression. Buspirone is an anxiolytic used to manage anxiety disorders.
5. A client who received a renal transplant three months ago is readmitted to the acute care unit with signs of graft rejection. While taking the client's history, the nurse determines the client has been self-administering St. John's wort, an herbal preparation, on the advice of a friend. What information is most significant about this finding?
- A. Wort can decrease plasma concentration of Cyclospora
- B. Wort can decrease plasma concentration of Tacrolimus
- C. Wort can decrease plasma concentration of Cyclosporine
- D. Wort can decrease plasma concentration of Mycophenolate
Correct answer: C
Rationale: The most significant information about the client self-administering St. John's wort, an herbal preparation, is that it can decrease the plasma concentration of Cyclosporine. St. John's wort is known to reduce the efficacy of Cyclosporine, which is a common immunosuppressant drug used to prevent transplant rejection. Choices A, B, and D are incorrect because St. John's wort does not affect the plasma concentration of Cyclospora, Tacrolimus, or Mycophenolate.
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