ATI RN
ATI Pharmacology
1. A client prescribed Warfarin is receiving discharge instructions from a nurse. Which of the following herbal supplements should the nurse instruct the client to avoid?
- A. St. John's wort
- B. Echinacea
- C. Garlic
- D. Ginseng
Correct answer: A
Rationale: St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism pathways, potentially leading to decreased anticoagulant effects. Therefore, clients on Warfarin therapy should avoid St. John's wort. While echinacea, garlic, and ginseng are also herbal supplements that can interact with Warfarin, St. John's wort is particularly known for its significant impact on Warfarin metabolism. Echinacea may increase the risk of bleeding when taken with Warfarin, garlic may potentiate the anticoagulant effects of Warfarin, and ginseng may also increase the risk of bleeding. However, St. John's wort is the most crucial to avoid due to its significant impact on Warfarin metabolism.
2. A client has a new prescription for Docusate Sodium. Which of the following instructions should the nurse include?
- A. Take the medication with a full glass of water.
- B. Expect results within 30 minutes.
- C. Take this medication at bedtime.
- D. Avoid taking this medication with food.
Correct answer: A
Rationale: The correct instruction for a client prescribed Docusate Sodium is to take the medication with a full glass of water. Docusate sodium is a stool softener, and taking it with water helps to soften the stool and make bowel movements easier. Adequate fluid intake is crucial when taking stool softeners to prevent constipation. Choices B, C, and D are incorrect. B is incorrect because the effects of Docusate Sodium may not be immediate, and it may take a couple of days for the stool softener to work. Choice C is incorrect as there is no specific requirement to take this medication at bedtime. Choice D is incorrect because there is no instruction to avoid taking Docusate Sodium with food.
3. A client is prescribed Metformin. Which of the following laboratory values should be monitored to assess for potential adverse effects?
- A. Blood glucose
- B. Creatine kinase
- C. Hemoglobin A1c
- D. Serum creatinine
Correct answer: D
Rationale: The correct answer is D: Serum creatinine. Metformin can potentially cause lactic acidosis, particularly in patients with impaired renal function. Monitoring serum creatinine levels is crucial to assess kidney function and detect any adverse effects of Metformin on renal health. Choices A, B, and C are incorrect as blood glucose, creatine kinase, and hemoglobin A1c levels are not directly monitored to assess for potential adverse effects of Metformin. Blood glucose monitoring is typically done to assess the efficacy of antidiabetic medications like Metformin, while creatine kinase levels are indicative of muscle damage and hemoglobin A1c reflects long-term blood sugar control.
4. A patient states he experiences anxiety and has panic attacks at least once a week. What might be helpful for this patient?
- A. Phenytoin (Dilantin)
- B. Lithium
- C. Alprazolam (Xanax)
- D. Spironolactone
Correct answer: C
Rationale: Alprazolam (Xanax) is a medication commonly prescribed to treat anxiety disorders and panic attacks. It belongs to the class of medications known as benzodiazepines, which work by enhancing the effects of gamma-aminobutyric acid (GABA) in the brain to produce a calming effect. Phenytoin is an antiepileptic drug, not typically used for anxiety or panic attacks. Lithium is primarily used to treat bipolar disorder, not anxiety. Spironolactone is a diuretic primarily used to treat conditions like high blood pressure and heart failure, not anxiety or panic attacks.
5. A healthcare professional is reviewing a client's health record and notes that the client experiences permanent extrapyramidal effects caused by a previous medication. The healthcare professional should recognize that the medication affected which of the following systems in the client?
- A. Cardiovascular
- B. Immune
- C. Central nervous
- D. Gastrointestinal
Correct answer: C
Rationale: The correct answer is C: Central nervous. Extrapyramidal effects are movement disorders caused by certain medications affecting the central nervous system. These effects can include symptoms like tremors, rigidity, and bradykinesia. Medications like typical antipsychotics induce extrapyramidal effects by interfering with dopamine transmission in the central nervous system. Choices A, B, and D are incorrect as extrapyramidal effects are specifically related to the central nervous system and not the cardiovascular, immune, or gastrointestinal systems.
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