HESI LPN
Pharmacology HESI Practice
1. A healthy 68-year-old client asks the practical nurse (PN) whether they should take the pneumococcal vaccine. Which statement should the PN offer to the client that provides the most accurate information about this vaccine?
- A. The vaccine is given annually before the flu season to those older than 50 years.
- B. The immunization is recommended for children younger than 2 years old and all adults 65 years or older.
- C. The vaccine is for all ages and is given primarily to those traveling overseas to areas of infection.
- D. The vaccine will prevent the occurrence of pneumococcal pneumonia for up to 5 years.
Correct answer: B
Rationale: The correct answer is B because it is usually recommended that children younger than 2 years old and adults 65 years or older get vaccinated against pneumococcal disease. This is because these age groups are more susceptible to severe complications from the infection. While the vaccine may be recommended for certain individuals with specific medical conditions at any age, the primary target groups are as mentioned in option B. Option A is incorrect as the pneumococcal vaccine is not given annually like the flu vaccine. Option C is incorrect because the vaccine is not primarily for travelers but for certain age groups and individuals with medical conditions at risk. Option D is incorrect as the vaccine's duration of protection can vary, and it is not guaranteed to prevent pneumococcal pneumonia for up to 5 years.
2. 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.
3. A client admitted with shortness of breath and palpitations currently takes an antiarrhythmic medication, dronedarone. Which action should the nurse take to prevent arrhythmias?
- A. Measure orthostatic blood pressure
- B. Obtain a 12-lead ECG reading daily
- C. Assess the client's apical pulse daily
- D. Provide continuous ECG monitoring
Correct answer: D
Rationale: The correct action to prevent arrhythmias in a client taking an antiarrhythmic medication like dronedarone is to provide continuous ECG monitoring. This is essential because antiarrhythmic drugs can sometimes cause pro-arrhythmic effects, which may lead to dangerous heart rhythm disturbances. Continuous ECG monitoring allows for real-time detection of any abnormal rhythms, enabling prompt intervention. Measuring orthostatic blood pressure, obtaining a 12-lead ECG reading daily, and assessing the client's apical pulse daily are important assessments in general patient care but may not specifically prevent arrhythmias in this scenario.
4. Which nursing intervention is most important when caring for a client receiving aspirin 600mg po QID?
- A. Monitor temperature q4h
- B. Use 10-point pain scale to assess pain
- C. Assess for dyspepsia and nausea
- D. Check stool for occult blood
Correct answer: D
Rationale: The correct answer is to check the stool for occult blood when caring for a client receiving aspirin 600mg po QID. Aspirin can lead to gastrointestinal bleeding, and checking for occult blood in the stool is essential to monitor for this serious adverse effect. Monitoring temperature, assessing pain, and checking for dyspepsia and nausea are important interventions but not as critical as monitoring for gastrointestinal bleeding when a client is receiving aspirin.
5. A client who takes metformin for diabetes mellitus type 2 is nothing by mouth (NPO) for surgery. What pre-op prescription should the practical nurse (PN) anticipate for this client's glucose management?
- A. NPO except for metformin and regular snacks
- B. NPO except for oral antidiabetic agent
- C. Novolin-N insulin subcutaneously twice daily
- D. Regular insulin subcutaneously per sliding scale
Correct answer: D
Rationale: When a client taking metformin for diabetes mellitus type 2 is NPO for surgery, it is crucial to manage their glucose levels effectively. The best approach in this situation is to prescribe regular insulin subcutaneously according to a sliding scale based on the client's blood glucose levels. This method allows for precise adjustment of insulin doses to maintain blood glucose within the target range while the client is unable to take oral medications. Choices A and B are incorrect because metformin is typically held when a client is NPO, and oral antidiabetic agents may not provide sufficient glucose control. Choice C is incorrect as Novolin-N insulin given twice daily may not offer the flexibility needed for glucose management in a surgical setting where the client's intake is restricted.
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