HESI RN
HESI Pharmacology Quizlet
1. In a client with chronic renal failure receiving epoetin alfa (Epogen, Procrit), which laboratory result would indicate a therapeutic effect of the medication?
- A. Hematocrit of 32%
- B. Platelet count of 400,000 cells/mm³
- C. White blood cell count of 6000 cells/mm³
- D. Blood urea nitrogen (BUN) level of 15 mg/dL
Correct answer: A
Rationale: A hematocrit of 32% indicates a therapeutic effect of epoetin alfa in a client with chronic renal failure. Epoetin alfa is used to treat anemia in these patients by stimulating red blood cell production, leading to an increase in the hematocrit level. Monitoring the hematocrit is essential to assess the response to epoetin alfa therapy.
2. A home health care nurse is visiting a client with elevated triglyceride levels and a serum cholesterol level of 398 mg/dL. The client is taking cholestyramine (Questran). Which of the following statements, if made by the client, indicates the need for further education?
- A. Constipation and bloating might be a problem.
- B. I'll continue to watch my diet and reduce my fats.
- C. Walking a mile each day will help the whole process.
- D. I'll continue my nicotinic acid from the health food store.
Correct answer: D
Rationale: Nicotinic acid, even an over-the-counter form, should be avoided because it may lead to liver abnormalities. All lipid-lowering medications also can cause liver abnormalities, so a combination of nicotinic acid and cholestyramine resin is to be avoided. Constipation and bloating are the two most common side effects. Walking and the reduction of fats in the diet are therapeutic measures to reduce cholesterol and triglyceride levels.
3. A clinic nurse prepares to administer an MMR (measles, mumps, rubella) vaccine to a child. How is this vaccine best administered?
- A. Intramuscularly in the deltoid muscle
- B. Subcutaneously in the gluteal muscle
- C. Subcutaneously in the outer aspect of the upper arm
- D. Intramuscularly in the anterolateral aspect of the thigh
Correct answer: C
Rationale: The MMR vaccine is best administered subcutaneously in the outer aspect of the upper arm. This route allows for proper absorption and efficacy of the vaccine while minimizing the risk of injury or discomfort to the child.
4. Meperidine hydrochloride (Demerol) is prescribed for a client with pain. Which of the following would the nurse monitor for as a side effect of this medication?
- A. Diarrhea
- B. Bradycardia
- C. Hypertension
- D. Urinary retention
Correct answer: D
Rationale: Meperidine hydrochloride (Demerol) is an opioid analgesic that can cause various side effects. Common side effects include respiratory depression, orthostatic hypotension, tachycardia, drowsiness, constipation, and urinary retention. Diarrhea is not a common side effect of Meperidine hydrochloride. Bradycardia and hypertension are not typically associated with this medication. Therefore, the nurse should monitor for urinary retention as a potential side effect of Meperidine hydrochloride.
5. Nalidixic acid (NegGram) is prescribed for a client with a urinary tract infection. On review of the client's record, the nurse notes that the client is taking warfarin sodium (Coumadin) daily. Which prescription should the nurse anticipate for this client?
- A. Discontinuation of warfarin sodium (Coumadin)
- B. A decrease in the warfarin sodium (Coumadin) dosage
- C. An increase in the warfarin sodium (Coumadin) dosage
- D. A decrease in the usual dose of nalidixic acid (NegGram)
Correct answer: B
Rationale: Nalidixic acid can intensify the effects of oral anticoagulants by displacing these agents from binding sites on plasma proteins. When an oral anticoagulant, like warfarin sodium (Coumadin), is combined with nalidixic acid, a decrease in the anticoagulant dosage may be necessary to avoid excessive anticoagulation and potential bleeding risks. Therefore, the correct action for the nurse to anticipate in this situation is a decrease in the warfarin sodium (Coumadin) dosage. Choice A is incorrect because discontinuing warfarin sodium abruptly can lead to thrombosis or embolism. Choice C is incorrect as increasing the warfarin sodium dosage can potentiate the anticoagulant effect, leading to bleeding complications. Choice D is incorrect as reducing the dose of nalidixic acid would not directly address the interaction with warfarin sodium.
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