ATI RN
ATI Pharmacology Proctored Exam 2023 Quizlet
1. What is the primary action of warfarin as an anticoagulant?
- A. Prevents the formation of blood clots
- B. Dissolves existing blood clots
- C. Dilates coronary arteries
- D. Treats rhythm disturbances
Correct answer: A
Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.
2. A client with breast cancer is being taught about Tamoxifen. Which of the following adverse effects of tamoxifen should the client be informed about?
- A. Irregular heart rhythm
- B. Abnormal uterine bleeding
- C. Yellowing of the sclera or dark-colored urine
- D. Difficulty swallowing
Correct answer: B
Rationale: Abnormal uterine bleeding is a known adverse effect of tamoxifen. It is important to educate the client about this side effect as those taking tamoxifen are at an increased risk for endometrial cancer. Any abnormal uterine bleeding should be promptly reported and evaluated by healthcare providers to ensure timely management and monitoring. The other options, such as irregular heart rhythm, yellowing of the sclera or dark-colored urine, and difficulty swallowing, are not typically associated with tamoxifen use and are not commonly reported adverse effects. Therefore, they are not the priority adverse effects to inform the client about.
3. A nurse is evaluating teaching for a client who has Rheumatoid Arthritis and a new prescription for Methotrexate. Which of the following statements by the client indicates understanding of the teaching?
- A. I will be sure to return to the clinic at least once a year to have my blood drawn while I'm taking methotrexate.
- B. I will take this medication on an empty stomach.
- C. I'll let the doctor know if I develop sores in my mouth while taking this medication.
- D. I should stop taking oral contraceptives while I'm taking methotrexate.
Correct answer: C
Rationale: Ulcerations in the mouth, tongue, or throat are often the first signs of methotrexate toxicity and should be reported to the provider immediately.
4. Why should the nitrate patch be off for 8 hours per day?
- A. “There is no reason to take the patch off each day.”
- B. “The patch can be addictive; leaving it off reduces the addiction.”
- C. “You should only leave the patch off for 15 minutes.”
- D. “Leaving the patch off for 8 hours per day helps to delay the development of tolerance.”
Correct answer: D
Rationale: Removing the nitrate patch for 8 hours each day is essential to prevent the body from developing tolerance to the medication. By allowing the body to have a drug-free period, the effectiveness of the medication is maintained over time. This practice helps in ensuring that the nitrate patch continues to provide its intended therapeutic effects without diminishing its efficacy. Therefore, it is important for the client to adhere to the prescribed schedule of removing the patch for 8 hours daily to optimize the treatment outcomes.
5. A client is being taught about a new prescription for Escitalopram to treat generalized anxiety disorder. Which statement by the client indicates understanding of the teaching?
- A. I should take the medication with food.
- B. I will monitor my blood sugar levels while taking this medication.
- C. I need to discontinue this medication slowly.
- D. I can crush this medication before swallowing.
Correct answer: C
Rationale: The correct answer is C. When discontinuing Escitalopram, the client should taper the medication slowly according to a prescribed dosing schedule to reduce the risk of withdrawal syndrome. Abruptly stopping the medication can lead to withdrawal symptoms, so it is important to follow the healthcare provider's instructions for gradual discontinuation. Choices A, B, and D are incorrect because Escitalopram should not necessarily be taken with food, there is no direct correlation with blood sugar levels, and the medication should not be crushed before swallowing.
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