ATI RN
ATI Pharmacology Proctored Exam 2024
1. A patient is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?
- A. Hemoglobin
- B. Prothrombin time (PT)
- C. Bleeding time
- D. Activated partial thromboplastin time (aPTT)
Correct answer: B
Rationale: The correct answer is to monitor Prothrombin time (PT) when a patient is on warfarin therapy. Warfarin affects blood clotting, and PT is used to assess the therapeutic effect of this medication. Hemoglobin (Choice A) is not directly affected by warfarin therapy and does not reflect its therapeutic effect. Bleeding time (Choice C) measures the time it takes for bleeding to stop after a standardized cut and is not specific to warfarin therapy. Activated partial thromboplastin time (aPTT) (Choice D) is more commonly used to monitor heparin therapy, not warfarin.
2. A client has a new prescription for Verapamil to control hypertension. Which of the following instructions should the nurse include?
- A. Increase the amount of dietary fiber in the diet.
- B. Drink grapefruit juice daily to increase vitamin C intake.
- C. Decrease the amount of calcium in the diet.
- D. Withhold food for 1 hr after taking the medication.
Correct answer: A
Rationale: Increasing dietary fiber intake is essential when taking Verapamil to prevent constipation, a common adverse effect of the medication. Dietary fiber can help maintain bowel regularity and alleviate constipation.
3. A client has a new prescription for methotrexate to treat Rheumatoid Arthritis. The nurse should expect to monitor the client for which of the following adverse effects?
- A. Insomnia
- B. Hypertension
- C. Bone marrow suppression
- D. Constipation
Correct answer: C
Rationale: The correct answer is bone marrow suppression (Choice C). Methotrexate can lead to bone marrow suppression, resulting in adverse effects such as anemia, leukopenia, and thrombocytopenia. Monitoring for signs of decreased blood cell counts is essential to prevent complications and adjust treatment as needed. Choices A, B, and D are incorrect. Insomnia, hypertension, and constipation are not typically associated with methotrexate use in the treatment of Rheumatoid Arthritis.
4. A healthcare provider is teaching the parents of a school-age child about transdermal Methylphenidate. Which of the following instructions should the healthcare provider include?
- A. Apply one patch twice a day.
- B. Leave the patch on for 9 hours.
- C. Apply the patch to the child's waist.
- D. Use the opened tray within 6 months.
Correct answer: B
Rationale: When administering transdermal Methylphenidate, it is important to leave the patch on for 9 hours each day to ensure the medication is effective. This duration allows for proper absorption of the medication through the skin. It is crucial for parents to follow this instruction to achieve the desired therapeutic effect for their child.
5. 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.
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