ATI RN
ATI Proctored Pharmacology 2023
1. What is the antidote for Warfarin?
- A. Naloxone
- B. Vitamin K
- C. Glucagon
- D. Vitamin B
Correct answer: B
Rationale: The correct antidote for Warfarin is Vitamin K. Warfarin works by inhibiting vitamin K-dependent clotting factors. Administering Vitamin K helps reverse its effects by replenishing these factors. Choices A, C, and D are incorrect. Naloxone is used to reverse opioid overdose, Glucagon is used to treat severe low blood sugar, and Vitamin B is not the antidote for Warfarin.
2. 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.
3. When teaching a client with a prescription for long-term use of oral prednisone for chronic asthma, the nurse should instruct the client to monitor for which of the following adverse effects of this medication?
- A. Weight gain
- B. Nervousness
- C. Bradycardia
- D. Constipation
Correct answer: A
Rationale: The correct answer is weight gain. Weight gain and fluid retention are common adverse effects of oral prednisone due to sodium and water retention. Patients on long-term prednisone therapy should be advised to monitor their weight closely and report any significant changes to their healthcare provider. Choice B, 'Nervousness,' is not typically associated with oral prednisone use. Choice C, 'Bradycardia,' refers to a slow heart rate, which is not a common adverse effect of prednisone. Choice D, 'Constipation,' is not a typical adverse effect of oral prednisone; instead, gastrointestinal disturbances like increased appetite or even peptic ulcer disease may occur.
4. A healthcare provider is caring for a client who has a new prescription for Digoxin. Which of the following findings should the healthcare provider identify as a potential sign of Digoxin toxicity?
- A. Nausea
- B. Dry mouth
- C. Hypoglycemia
- D. Tinnitus
Correct answer: A
Rationale: Nausea is a potential sign of Digoxin toxicity. Along with vomiting, visual disturbances, and confusion, it can be an early indication of an overdose. Dry mouth is not typically associated with Digoxin toxicity. Hypoglycemia is a low blood sugar level and is not directly related to Digoxin toxicity. Tinnitus, a ringing in the ears, is not a common sign of Digoxin toxicity. Healthcare providers should closely monitor clients on Digoxin for symptoms like nausea to prevent serious complications.
5. A healthcare professional is preparing to administer Filgrastim for the first time to a client who has just undergone a bone marrow transplant. Which of the following interventions is appropriate?
- A. Administer intravenously to prevent injury.
- B. Ensure that the medication is kept refrigerated until just prior to administration.
- C. Do not shake the vial; gently invert it to mix before withdrawing the dose.
- D. Discard the vial after removing one dose of the medication.
Correct answer: D
Rationale: When administering Filgrastim, only one dose should be withdrawn from the vial, and the vial should then be discarded to prevent any contamination or errors in dosing. It is crucial not to shake the vial but gently invert it to mix the medication before withdrawing the appropriate dose. Refrigeration is not required for Filgrastim; it should be stored at room temperature until just before administration. Choice A is incorrect because Filgrastim is typically administered subcutaneously, not intravenously. Choice B is incorrect as the medication should be stored at room temperature, not refrigerated, until administration. Choice C is incorrect as shaking the vial is not recommended for Filgrastim.
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