HESI LPN
Pharmacology HESI 2023 Quizlet
1. The practical nurse administers lactulose to a client. Which client outcome would indicate a therapeutic response?
- A. An increase in urine output
- B. Two to three soft stools per day
- C. Absence of nausea
- D. Decreased serum potassium
Correct answer: B
Rationale: Lactulose is a type of laxative that works by preventing the absorption of ammonia in the colon, leading to increased water absorption in the stool and softening of the stool. The therapeutic response to lactulose is indicated by the passage of two to three soft stools per day, showing that the medication is effectively promoting bowel movements.
2. 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.
3. A client with rheumatoid arthritis is prescribed sulfasalazine. Which instruction should the nurse include in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid sunlight while taking this medication.
- C. Report any signs of infection to the healthcare provider.
- D. Take this medication on an empty stomach.
Correct answer: A
Rationale: The correct instruction to include in the client's teaching plan regarding sulfasalazine is to take the medication with meals. Taking sulfasalazine with food helps to minimize gastrointestinal upset, which is a common side effect of the medication. Choice B is incorrect because avoiding sunlight is not specifically related to sulfasalazine. Choice C is important but not directly related to the administration of sulfasalazine. Choice D is incorrect because sulfasalazine should be taken with meals to reduce gastrointestinal side effects.
4. A client with schizophrenia is prescribed risperidone. Which statement by the client indicates the need for further teaching?
- A. I can stop taking this medication once I feel better.
- B. This medication may cause drowsiness.
- C. This medication might make me feel drowsy.
- D. I should avoid alcohol while taking this medication.
Correct answer: A
Rationale: Clients should not stop taking risperidone abruptly once they feel better without consulting their healthcare provider.
5. A client has been diagnosed with open-angle glaucoma. The healthcare provider prescribes pilocarpine 1% eye drops. The nurse explains that which action of this drug makes it a useful treatment for the client's condition?
- A. The ciliary muscle contracts, increasing the outflow of aqueous humor in the eye.
- B. Ciliary muscles are paralyzed to decrease accommodation.
- C. Bilateral mydriasis with cycloplegia is accomplished.
- D. The production of aqueous humor in the eyes is decreased.
Correct answer: A
Rationale: Pilocarpine, a cholinergic agent, stimulates the ciliary muscle to contract, which opens the trabecular meshwork and facilitates the outflow of aqueous humor, reducing intraocular pressure. This mechanism helps in managing open-angle glaucoma by improving drainage and lowering pressure within the eye. Choice A is correct because the contraction of the ciliary muscle increases the outflow of aqueous humor, aiding in the treatment of open-angle glaucoma. Choices B, C, and D are incorrect because they do not describe the mechanism of action of pilocarpine in treating glaucoma.
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