HESI LPN
Pharmacology HESI Practice
1. A client is prescribed an antacid for the treatment of peptic ulcer disease. What is the action of this medication that is effective in treating the client's ulcer?
- A. Decrease in the production of gastric secretions
- B. Production of an adherent barrier over the ulcer
- C. Maintenance of a gastric pH of 3.5 or above
- D. Decrease in the gastric motor activity
Correct answer: C
Rationale: The correct answer is C. Antacids work by neutralizing gastric acids and maintaining a gastric pH of 3.5 or above. This pH level is crucial to prevent the activation of pepsinogen, a precursor to pepsin, which can further damage the ulcer. Choice A is incorrect because antacids do not directly decrease the production of gastric secretions; they neutralize existing acid. Choice B is incorrect as antacids do not form a physical barrier over the ulcer but rather neutralize the acid around it. Choice D is also incorrect as antacids do not affect gastric motor activity but focus on reducing acidity in the stomach.
2. What instructions should the practical nurse (PN) review with a client diagnosed with vaginal trichomoniasis who is prescribed oral metronidazole?
- A. Avoid direct sunlight exposure and use a sunscreen product with SPF100.
- B. The client's sexual partner(s) should also be treated.
- C. Avoid vinegar or commercial product douches.
- D. Eliminate dairy products from the diet during treatment.
Correct answer: B
Rationale: The correct answer is B. The practical nurse should instruct the client that their sexual partner(s) should also be treated when dealing with vaginal trichomoniasis. This is crucial to prevent reinfection as sexual intercourse is the route of spread for this infection. Choices A, C, and D are incorrect. While avoiding direct sunlight exposure and using sunscreen is important for some medications, it is not specifically related to metronidazole treatment for trichomoniasis. Avoiding vinegar or commercial douches is a general recommendation for vaginal health and not specific to this infection. Eliminating dairy products from the diet is not a typical instruction for clients prescribed metronidazole for vaginal trichomoniasis.
3. 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.
4. Which assessment finding requires nursing intervention prior to the administration of medication?
- A. Apical pulse heard best at the pulmonic site
- B. Irregular apical pulse rhythm
- C. Presence of a systolic heart murmur
- D. Apical pulse rate of 50 beats/minute
Correct answer: D
Rationale: An apical pulse rate of 50 beats/minute indicates bradycardia, a heart rate below the normal range, which requires immediate nursing intervention before administering medication to address the potential impact of the bradycardia on the patient's overall condition.
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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