ATI RN
ATI Proctored Pharmacology 2023
1. When administering medications to a 4-month-old infant, which of the following pharmacokinetic principles should be considered? (Select all that apply.)
- A. Infants have a more rapid gastric emptying time.
- B. Infants have immature liver function.
- C. Infants' blood-brain barrier is poorly developed.
- D. Infants have an increased ability to absorb topical medications.
Correct answer: B
Rationale: When administering medications to a 4-month-old infant, the pharmacokinetic principle to consider is that infants have immature liver function until 1 year of age. This requires medications metabolized by the liver to be administered in smaller dosages. While infants do have a more rapid gastric emptying time, immature liver function is a more critical pharmacokinetic consideration in this context. Additionally, although infants have a poorly developed blood-brain barrier, this relates more to pharmacodynamic effects rather than pharmacokinetic principles. The statement about infants having an increased ability to absorb topical medications is not directly related to pharmacokinetic principles, making choice B the correct answer.
2. A client is receiving treatment with capecitabine. Which of the following findings should the nurse monitor?
- A. Hyperglycemia
- B. Hypocalcemia
- C. Neutropenia
- D. Bradycardia
Correct answer: C
Rationale: Capecitabine is known to cause neutropenia as a common adverse effect due to bone marrow suppression. Neutropenia increases the risk of infections and requires close monitoring to prevent complications. Hyperglycemia (Choice A) is not typically associated with capecitabine. Hypocalcemia (Choice B) and Bradycardia (Choice D) are not commonly linked to capecitabine use, making them incorrect choices.
3. A client in a coronary care unit is being admitted after CPR post cardiac arrest. The client is receiving IV lidocaine at 2 mg/min. When the client asks the nurse why he is receiving that medication, the nurse should explain that it has which of the following actions?
- A. Prevents dysrhythmias
- B. Slows intestinal motility
- C. Dissolves blood clots
- D. Relieves pain
Correct answer: A
Rationale: Lidocaine is administered to prevent dysrhythmias by delaying conduction in the heart and reducing the automaticity of heart tissue. This action helps stabilize the heart's electrical activity and prevent life-threatening arrhythmias post-cardiac arrest. Choices B, C, and D are incorrect as lidocaine is not used for slowing intestinal motility, dissolving blood clots, or relieving pain in this context.
4. A client has a new prescription for Furosemide. Which of the following adverse effects should the nurse monitor?
- A. Hyperkalemia
- B. Hyponatremia
- C. Hypernatremia
- D. Hypercalcemia
Correct answer: B
Rationale: Furosemide is a diuretic that commonly causes hyponatremia (low sodium levels) due to its effect on sodium and water excretion. The nurse must closely monitor the client for signs of hyponatremia, such as weakness, confusion, and muscle cramps, and promptly intervene to prevent complications. Choices A, C, and D are incorrect because Furosemide is not associated with hyperkalemia, hypernatremia, or hypercalcemia. Understanding the medication's mechanism of action helps prioritize monitoring for potential adverse effects.
5. A client with schizophrenia is being taught strategies to cope with anticholinergic effects of Fluphenazine. Which of the following should the nurse suggest to the client to minimize anticholinergic effects?
- A. Take the medication in the morning to prevent insomnia.
- B. Chew sugarless gum to moisten the mouth.
- C. Use cooling measures to decrease fever.
- D. Take an antacid to relieve nausea.
Correct answer: B
Rationale: Chewing sugarless gum is an effective strategy to manage dry mouth, a common anticholinergic effect of Fluphenazine. By stimulating saliva production, sugarless gum helps to moisten the mouth and alleviate the discomfort associated with dryness. This intervention can improve the client's oral health and overall comfort while taking the medication. The other options are not directly related to alleviating anticholinergic effects. Taking the medication in the morning to prevent insomnia does not address anticholinergic effects specifically. Using cooling measures to decrease fever is not relevant to managing dry mouth caused by anticholinergic effects. Taking an antacid to relieve nausea is unrelated to managing dry mouth, which is the focus of anticholinergic effects.
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