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. An adolescent client with a seizure disorder is prescribed the anticonvulsant medication carbamazepine. The nurse should notify the healthcare provider if the client develops which condition?
- A. Experiences dry mouth.
- B. Experiences dizziness.
- C. Develops a sore throat.
- D. Develops gingival hyperplasia.
Correct answer: C
Rationale: The correct answer is C: 'Develops a sore throat.' When a client on carbamazepine develops flu-like symptoms such as pallor, fatigue, sore throat, and fever, it could indicate blood dyscrasias (aplastic anemia, leukopenia, anemia, thrombocytopenia), which are potential adverse effects of the medication. These symptoms warrant immediate notification of the healthcare provider for further evaluation and management to prevent complications. Choices A, B, and D are incorrect because dry mouth, dizziness, and gingival hyperplasia are not commonly associated with carbamazepine use and do not indicate serious adverse effects that require immediate healthcare provider notification.
3. A practical nurse (PN) is preparing to administer a scheduled dose of furosemide to a client. Which laboratory value is most important for the PN to review before administering the medication?
- A. Serum calcium level
- B. Serum potassium level
- C. Serum sodium level
- D. Serum magnesium level
Correct answer: B
Rationale: The correct answer is to review the client's serum potassium level before administering furosemide. Furosemide, a loop diuretic, can lead to hypokalemia, making it crucial to assess potassium levels to prevent potential complications like cardiac arrhythmias associated with low potassium levels.
4. A client is prescribed phenytoin for the management of seizures. What instruction should the practical nurse provide to the client regarding this medication?
- A. Take the medication at the same time every day.
- B. Discontinue the medication if a rash develops.
- C. Avoid consuming dairy products.
- D. Monitor blood pressure regularly.
Correct answer: A
Rationale: The correct instruction the practical nurse should provide to the client regarding phenytoin is to take the medication at the same time every day. This consistency helps maintain a steady level of the medication in the bloodstream, which is crucial for effectively managing seizures. It is important for clients to adhere to their prescribed dosing schedule to optimize the therapeutic benefits of phenytoin. Choices B, C, and D are incorrect because discontinuing the medication without healthcare provider guidance can be dangerous, there is no specific interaction between phenytoin and dairy products, and monitoring blood pressure is not a primary concern with phenytoin therapy for seizures.
5. A 67-year-old client is discharged from the hospital with a prescription for digoxin 0.25 mg daily. Which instruction by the practical nurse (PN) is correct?
- A. Take the medication in the morning before getting out of bed.
- B. Do not take the medication if the heartbeat is irregular or slow.
- C. Expect some vision changes due to the medication.
- D. Increase intake of foods rich in potassium.
Correct answer: B
Rationale: The correct instruction for a client taking digoxin is not to take the medication if the heartbeat is irregular or slow. Digoxin can affect the heart rhythm, so it is crucial to monitor the pulse rate. In case of irregular or slow heartbeats, the medication should be withheld, and the healthcare provider should be consulted. This step is necessary to prevent potential complications associated with digoxin therapy. Choices A, C, and D are incorrect. Taking digoxin in the morning before getting out of bed is not a specific requirement. Vision changes are not a common side effect of digoxin. While digoxin can affect potassium levels, it is not advised to increase potassium intake without healthcare provider guidance.
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