ATI RN
ATI Pharmacology
1. A patient is prescribed acetaminophen 650 mg PO every 6 hr PRN for pain. The available acetaminophen liquid is 500 mg/5 mL. How many mL should the nurse administer per dose?
- A. 6.5 mL
- B. 7 mL
- C. 5 mL
- D. 8 mL
Correct answer: A
Rationale: To calculate the volume to administer: (Desired dose / Concentration) = Volume to administer. In this case, (650 mg / 500 mg) x 5 mL = 6.5 mL. Therefore, the nurse should administer 6.5 mL of acetaminophen liquid per dose to provide the prescribed 650 mg of acetaminophen. Choice B, 7 mL, is incorrect because the correct calculation results in 6.5 mL. Choice C, 5 mL, is incorrect as it is the concentration of the acetaminophen liquid, not the final volume needed. Choice D, 8 mL, is incorrect because it does not reflect the accurate calculation based on the prescription and concentration.
2. A client with thrombophlebitis receiving heparin by continuous IV infusion asks the nurse how long it will take for the heparin to dissolve the clot. Which of the following responses should the nurse give?
- A. It usually takes heparin at least 2 to 3 days to reach a therapeutic blood level.
- B. A pharmacist is the person to answer that question.
- C. Heparin does not dissolve clots. It stops new clots from forming.
- D. The oral medication you will take after this IV will dissolve the clot.
Correct answer: C
Rationale: The correct response is C. Heparin does not dissolve clots; it prevents new clots from forming. Heparin works by inhibiting the formation of new clots and the extension of existing clots, rather than directly dissolving them. The client should be informed that the purpose of heparin therapy is to prevent the clot from getting larger and to reduce the risk of new clots forming. Choices A, B, and D are incorrect. Choice A talks about reaching a therapeutic blood level of heparin, which is not related to clot dissolution. Choice B deflects the question to a pharmacist without providing relevant information. Choice D inaccurately suggests that an oral medication will dissolve the clot, which is not the mechanism of action for heparin.
3. A client has a new prescription for Beclomethasone. Which of the following instructions should the nurse include?
- A. Rinse your mouth after each use of this medication.
- B. Limit fluid intake while taking this medication.
- C. Increase your intake of vitamin B12 while taking this medication.
- D. You can take the medication as needed.
Correct answer: A
Rationale: The correct instruction the nurse should provide is to rinse the mouth after each use of Beclomethasone. This practice helps reduce the risk of developing oral fungal infections associated with inhaled corticosteroids. Choice B is incorrect because there is no need to limit fluid intake while taking this medication. Choice C is incorrect as there is no specific indication to increase vitamin B12 intake with Beclomethasone. Choice D is incorrect as Beclomethasone should be used according to the prescribed schedule, not as needed.
4. A client has a prescription for digoxin. The client should be monitored for which of the following findings as an indication of digoxin toxicity?
- A. Visual disturbances
- B. Tachycardia
- C. Increased appetite
- D. Constipation
Correct answer: A
Rationale: Visual disturbances, such as yellow-tinged vision or seeing halos around lights, are common signs of digoxin toxicity. These symptoms should be reported immediately to healthcare providers for further evaluation and management. Tachycardia (Choice B) is not typically associated with digoxin toxicity. Increased appetite (Choice C) and constipation (Choice D) are not common manifestations of digoxin toxicity. Therefore, the correct answer is visual disturbances.
5. A client has been prescribed Methotrexate to treat Rheumatoid Arthritis. Which of the following instructions should the nurse provide?
- A. Take this medication with food to prevent nausea.
- B. Avoid alcohol while taking this medication.
- C. Wear sunscreen when outdoors while taking this medication.
- D. Take this medication on an empty stomach.
Correct answer: B
Rationale: Methotrexate is hepatotoxic, and avoiding alcohol is crucial to prevent liver damage. However, Option A (Take this medication with food to prevent nausea) could also be correct, as Methotrexate commonly causes nausea, and taking it with food can help alleviate this side effect. However, the most important instruction is to avoid alcohol due to the risk of liver toxicity.
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