ATI RN
ATI Pharmacology Quizlet
1. A healthcare professional is preparing to administer Haloperidol 2 mg PO every 12 hr. The available dosage is haloperidol 1 mg/tablet. How many tablets should the healthcare professional administer?
- A. 1 tablet
- B. 2 tablets
- C. 3 tablets
- D. 4 tablets
Correct answer: B
Rationale: To determine the number of tablets needed, divide the desired dose by the dose per tablet. In this case, (2 mg / 1 mg/tablet) = 2 tablets required to administer the prescribed dose of Haloperidol.
2. A client has a new prescription for Calcitonin-Salmon for Osteoporosis. Which of the following instructions should the nurse include in the teaching?
- A. Administer the medication intramuscularly.
- B. Swallow the medication whole.
- C. Inject the medication subcutaneously.
- D. Expect nasal bleeding with this medication.
Correct answer: C
Rationale: When teaching a client about Calcitonin-Salmon for Osteoporosis, the nurse should include instructions to inject the medication subcutaneously or administer it intranasally. Option A is incorrect because Calcitonin-Salmon is not typically administered intramuscularly. Option B is incorrect because it is not meant to be swallowed. Option D is incorrect as nasal bleeding is not an expected side effect with this medication.
3. A healthcare professional is reviewing laboratory results for a client who is receiving heparin via continuous IV infusion. Which of the following results indicates that the heparin infusion should be increased?
- A. aPTT of 90 seconds
- B. Platelet count of 150,000/mm³
- C. INR of 1.0
- D. Hgb of 15 g/dL
Correct answer: A
Rationale: An aPTT of 90 seconds is above the therapeutic range for heparin, which typically falls between 60-80 seconds. This indicates that the current heparin dose is too high, and the infusion rate should be decreased to avoid excessive anticoagulation and the risk of bleeding. Monitoring aPTT is crucial in adjusting heparin therapy to maintain it within the therapeutic range.
4. 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.
5. A client has a prescription for Clonidine to treat hypertension. Which of the following instructions should the nurse include?
- A. Discontinue the medication if you experience dry mouth.
- B. Take the medication at the same time each day.
- C. Double the dose if you miss a dose.
- D. Avoid drinking orange juice while taking this medication.
Correct answer: B
Rationale: Correct Answer: Taking Clonidine at the same time each day is crucial to ensure consistent blood levels and effectively manage blood pressure. Consistency in timing helps optimize the medication's effectiveness in controlling hypertension.
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