ATI RN
ATI Proctored Pharmacology Test
1. What is a desired outcome of the drug Phenytoin?
- A. Decrease symptoms of PTSD
- B. Resolution of signs of infection
- C. Decrease or cessation of seizures without excessive sedation
- D. Prevention or relief of bronchospasm
Correct answer: C
Rationale: The correct answer is C: Decrease or cessation of seizures without excessive sedation. Phenytoin is primarily used as an antiepileptic medication to manage and prevent seizures. It does not directly impact symptoms of PTSD (Choice A), resolution of signs of infection (Choice B), or prevention or relief of bronchospasm (Choice D). Therefore, the desired outcome of Phenytoin is to control seizures effectively while avoiding excessive sedation.
2. A client has a prescription for Furosemide. Which of the following instructions should the nurse include?
- A. Take the medication in the morning.
- B. Increase your intake of potassium-rich foods.
- C. Expect your urine to turn orange.
- D. Avoid prolonged sunlight exposure.
Correct answer: B
Rationale: The correct answer is B: 'Increase your intake of potassium-rich foods.' Furosemide is a loop diuretic that can lead to hypokalemia (low potassium levels) due to increased excretion of potassium in the urine. To counteract this effect and maintain electrolyte balance, the client should be advised to increase their intake of potassium-rich foods. This instruction helps prevent potential complications associated with low potassium levels. Choices A, C, and D are incorrect. Taking Furosemide in the morning does not affect its effectiveness; urine turning orange is not an expected side effect of Furosemide; and avoiding prolonged sunlight exposure is not directly related to Furosemide use.
3. A client has been prescribed diltiazem (Cardizem) and asks the nurse what type of drug this is. Which response by the nurse is most appropriate?
- A. “A beta blocker.”
- B. “A sodium channel blocker.”
- C. “An alpha blocker.”
- D. “A calcium channel blocker.”
Correct answer: D
Rationale: Diltiazem (Cardizem) belongs to the class of drugs known as calcium channel blockers. These medications work by blocking calcium from entering the muscle cells of the heart and blood vessels, leading to relaxation of the blood vessels and reduced workload on the heart. This helps in lowering blood pressure and improving blood flow. It is crucial for the nurse to provide accurate information to the client about the type of drug prescribed to ensure understanding and compliance with the treatment plan.
4. A client has a new prescription for Tetracycline. Which of the following instructions should be included?
- A. Take the medication with milk.
- B. Avoid prolonged sun exposure.
- C. Take the medication at bedtime.
- D. Expect urine to turn dark yellow.
Correct answer: B
Rationale: The correct instruction to include for a client prescribed Tetracycline is to 'Avoid prolonged sun exposure.' Tetracycline can cause photosensitivity, making the client more sensitive to the sun's rays. This can lead to adverse reactions like sunburn or skin rashes. Therefore, it is crucial for the client to minimize sun exposure and wear protective clothing when outdoors. Choice A is incorrect because taking Tetracycline with milk can reduce its absorption. Choice C is incorrect as there is no specific requirement to take Tetracycline at bedtime. Choice D is also incorrect as Tetracycline does not typically cause dark yellow urine.
5. A client with deep vein thrombosis has been on heparin continuous infusion for 5 days. The provider prescribes warfarin PO without discontinuing the heparin. The client asks the nurse why both anticoagulants are necessary. Which of the following statements should the nurse make?
- A. Warfarin takes several days to work, so the IV heparin will be used until the warfarin reaches a therapeutic level.
- B. I will call the provider to get a prescription for discontinuing the IV heparin today.
- C. Both heparin and warfarin work together to dissolve the clots.
- D. The IV heparin increases the effects of the warfarin and decreases the length of your hospital stay.
Correct answer: A
Rationale: The correct answer is A because warfarin takes several days to reach a therapeutic level and exert its full anticoagulant effect. During this time, the IV heparin is continued to prevent clotting until the warfarin is effective. Both medications are used together temporarily for this reason. Discontinuing heparin prematurely can increase the risk of clot formation. Therefore, the nurse should explain to the client that the IV heparin will be continued until the warfarin reaches a therapeutic level.
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