ATI LPN
Pharmacology for LPN
1. A client with atrial fibrillation is receiving warfarin (Coumadin). The nurse should reinforce which instruction?
- A. Avoid foods high in vitamin K.
- B. Increase intake of dairy products.
- C. Limit intake of high-fiber foods.
- D. Avoid protein-rich foods.
Correct answer: A
Rationale: The correct answer is A: Avoid foods high in vitamin K. Clients taking warfarin need to be cautious with their vitamin K intake because vitamin K can counteract the effects of the medication. Therefore, it is essential to avoid foods high in vitamin K to maintain the therapeutic effects of warfarin. Choice B is incorrect because increasing dairy product intake is not specifically related to warfarin therapy. Choice C is incorrect as high-fiber foods do not interfere with warfarin therapy. Choice D is incorrect as protein-rich foods are not contraindicated with warfarin therapy.
2. An 18-month-old child presents with fever, nasal flaring, intercostal retractions, and a respiratory rate of 50 bpm. What is the most appropriate nursing diagnosis?
- A. High risk for altered body temperature (hyperthermia)
- B. Ineffective breathing pattern
- C. Ineffective individual coping
- D. Knowledge deficit
Correct answer: B
Rationale: The most appropriate nursing diagnosis for the 18-month-old child presenting with fever, nasal flaring, intercostal retractions, and a respiratory rate of 50 bpm is 'Ineffective breathing pattern.' These symptoms collectively indicate respiratory distress, which aligns with the nursing diagnosis of ineffective breathing pattern. Nasal flaring, intercostal retractions, and an increased respiratory rate are signs of respiratory distress in pediatric patients, suggesting the need for immediate intervention to address the underlying breathing difficulties.
3. How does a nursing infant receive antibodies from its mother?
- A. Through anabolism and catabolism.
- B. Through the absorption of antibodies.
- C. Through the absorption of amino acids and synthesis of antibodies.
- D. Through genetic inheritance.
Correct answer: B
Rationale: A nursing infant receives antibodies from its mother through the absorption of antibodies present in breast milk. Choice A is incorrect as anabolism and catabolism refer to metabolic processes, not the transfer of antibodies. Choice C is incorrect as the infant does not need to synthesize antibodies but directly receives them. Choice D is incorrect because while genetic inheritance plays a role in the immune system, in this case, the direct transfer of antibodies occurs through breast milk.
4. How is the enzyme trypsin activated?
- A. By zymogen.
- B. By bile.
- C. By gastrin.
- D. By enterokinase.
Correct answer: D
Rationale: The correct answer is D: By enterokinase. Trypsin is activated by enterokinase, an enzyme secreted by the small intestine. Enterokinase plays a crucial role in converting trypsinogen into its active form, trypsin. Choices A, B, and C are incorrect because trypsin is specifically activated by enterokinase, not by zymogen, bile, or gastrin.
5. When caring for a client experiencing delirium, which of the following is essential?
- A. Controlling behavioral symptoms with low-dose psychotropics
- B. Identifying the underlying causative condition or illness
- C. Manipulating the environment to increase orientation
- D. Decreasing or discontinuing all previously prescribed medications
Correct answer: B
Rationale: When caring for a client experiencing delirium, it is essential to identify the underlying causative condition or illness. Delirium can be caused by various factors such as infections, medication side effects, dehydration, or underlying health conditions. By identifying the root cause, appropriate treatment can be provided. Controlling behavioral symptoms with low-dose psychotropics (Choice A) may be considered in some cases but is not the primary essential step. Manipulating the environment to increase orientation (Choice C) can help manage symptoms but does not address the underlying cause. Decreasing or discontinuing all previously prescribed medications (Choice D) should only be done under medical supervision, as some medications may be necessary for the client's well-being.
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