ATI RN
ATI Pharmacology Proctored Exam 2023 Quizlet
1. A client has a new prescription for Raltegravir. Which of the following statements should the nurse include in teaching the client?
- A. This medication prevents the virus from entering the cell.
- B. This medication prevents the virus from leaving the cell.
- C. This medication blocks the virus from attaching to the cell.
- D. This medication blocks the virus from replicating in the cell.
Correct answer: D
Rationale: The correct answer is D because Raltegravir works by blocking the integrase enzyme, preventing the virus from integrating its genetic material into the host cell's DNA. By inhibiting this process, viral replication within the host cell is halted. Choices A, B, and C are incorrect because Raltegravir's mechanism of action specifically targets viral replication within the cell, not virus entry, exit, or attachment to the cell.
2. What is the antidote for Warfarin?
- A. Vitamin D
- B. Vitamin C
- C. Vitamin K
- D. Vitamin B6
Correct answer: C
Rationale: Vitamin K is the antidote for Warfarin toxicity as it helps reverse the anticoagulant effects of Warfarin. Warfarin works by inhibiting vitamin K-dependent clotting factors, and administering vitamin K can replenish these factors, thereby counteracting the anticoagulant effects of Warfarin. Vitamin D, Vitamin C, and Vitamin B6 do not have the specific mechanism to counteract the anticoagulant effects of Warfarin, making them incorrect choices.
3. What is the antidote for copper toxicity?
- A. Glucagon
- B. Aminocaproic acid
- C. Atropine
- D. Penicillamine
Correct answer: D
Rationale: Penicillamine is the specific chelating agent used for copper toxicity. It forms stable complexes with copper, which are then excreted in the urine. Glucagon is used for treating hypoglycemia, aminocaproic acid is used to treat bleeding disorders, and atropine is used as an antidote for certain types of poisoning, such as organophosphate toxicity.
4. A healthcare professional is educating a client who has a new prescription for warfarin. Which of the following statements should the healthcare professional include?
- A. Avoid foods high in vitamin K.
- B. Report any signs of bleeding to your healthcare provider.
- C. Use a soft toothbrush to prevent gum bleeding.
- D. Use an electric razor to prevent cuts.
Correct answer: B
Rationale: The correct statement that the healthcare professional should include when educating a client prescribed warfarin is to report any signs of bleeding to their healthcare provider. Bleeding can indicate excessive anticoagulation, which is a serious side effect of warfarin. Prompt reporting of bleeding symptoms is crucial to prevent complications. Choices A, C, and D are incorrect. While avoiding foods high in vitamin K may be important when taking warfarin due to its interaction with the medication, it is not the priority over reporting signs of bleeding. Using a soft toothbrush and electric razor are general precautions for individuals on anticoagulants but are not as critical as reporting bleeding symptoms.
5. A client has a prescription for Phenytoin. Which of the following instructions should the nurse include?
- A. Take this medication at bedtime.
- B. Increase your intake of calcium-rich foods.
- C. Brush and floss your teeth regularly.
- D. Avoid eating foods high in potassium.
Correct answer: C
Rationale: The correct answer is C: 'Brush and floss your teeth regularly.' Phenytoin can cause gingival hyperplasia, a condition that leads to overgrowth of gum tissue. Good oral hygiene practices such as regular brushing and flossing can help prevent or minimize this side effect. In contrast, choices A, B, and D are not directly related to managing the side effects of Phenytoin. Taking the medication at bedtime (choice A) is not a specific instruction related to oral hygiene. Increasing calcium-rich foods intake (choice B) may be beneficial for bone health but is not directly related to preventing gingival hyperplasia. Avoiding foods high in potassium (choice D) is not a necessary instruction for a client taking Phenytoin.
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