ATI RN
ATI Pharmacology Proctored Exam 2019
1. An older adult client has a new prescription for Digoxin and takes multiple other medications. The nurse should recognize that concurrent use of which of the following medications places the client at risk for Digoxin toxicity?
- A. Phenytoin
- B. Verapamil
- C. Warfarin
- D. Aluminum hydroxide
Correct answer: B
Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to toxicity. When given together, the digoxin dosage may need adjustment, and the nurse should closely monitor the client's digoxin levels to prevent toxicity symptoms such as nausea, vomiting, visual disturbances, and arrhythmias. The other choices, Phenytoin, Warfarin, and Aluminum hydroxide, do not significantly interact with Digoxin to cause toxicity. Phenytoin may reduce Digoxin levels, while Warfarin and Aluminum hydroxide have minimal interactions with Digoxin.
2. During discharge instructions, a client with a new prescription for Phenytoin should be advised to take which of the following actions?
- A. Brush and floss your teeth regularly.
- B. Avoid drinking grapefruit juice.
- C. Take this medication on an empty stomach.
- D. Increase your intake of calcium-rich foods.
Correct answer: A
Rationale: The correct instruction for a client with a new prescription for Phenytoin is to brush and floss their teeth regularly. Phenytoin is known to cause gingival hyperplasia, a condition that affects the gums. By maintaining good oral hygiene practices such as regular brushing and flossing, the client can help minimize the risk of developing this side effect. Choices B, C, and D are incorrect. Avoiding grapefruit juice is more relevant for medications affected by grapefruit juice metabolism, taking medication on an empty stomach is not specifically indicated for Phenytoin, and increasing calcium-rich foods is not directly related to the side effects or administration of Phenytoin.
3. When teaching a client with a new prescription for Sulfasalazine, which instruction should the nurse include?
- A. Expect orange discoloration of urine and skin.
- B. Increase your intake of high-sodium foods.
- C. Take the medication with a full glass of milk.
- D. Expect your stools to be black and tarry.
Correct answer: A
Rationale: The correct instruction to include when teaching a client with a new prescription for Sulfasalazine is to expect orange discoloration of urine and skin. Sulfasalazine can cause this harmless side effect, which does not necessitate discontinuation of the medication. It is crucial for the nurse to educate the client about this expected outcome to prevent unnecessary concern or discontinuation of the medication. Choices B, C, and D are incorrect. Increasing intake of high-sodium foods is not recommended with Sulfasalazine, as it can worsen certain side effects. Taking the medication with a full glass of milk is not necessary for Sulfasalazine administration. Expecting stools to be black and tarry is not an expected side effect of Sulfasalazine.
4. A client with congestive heart failure taking digoxin refused breakfast and is complaining of nausea and weakness. Which action should the nurse take first?
- A. Check the client's vital signs.
- B. Request a consult with a dietitian.
- C. Suggest that the client rests before eating the meal.
- D. Request an order for an antiemetic.
Correct answer: A
Rationale: The nurse should check the client's vital signs first because nausea and weakness can be signs of digoxin toxicity. Vital signs can provide immediate information on the client's condition and help guide further interventions. Monitoring vital signs will allow the nurse to assess for bradycardia, a common sign of digoxin toxicity. Requesting a dietitian consult (choice B) may be necessary but addressing the immediate concern of toxicity is the priority. Suggesting rest before eating (choice C) may not address the underlying issue of digoxin toxicity. Requesting an antiemetic (choice D) can be considered later but is not the initial action needed in this situation.
5. A hospitalized client has an activated partial thromboplastin time (aPTT) greater than 1.5 times the expected reference range. Which of the following blood products should be prepared for transfusion?
- A. Whole blood
- B. Platelets
- C. Fresh frozen plasma
- D. Packed red blood cells
Correct answer: C
Rationale: Fresh frozen plasma is the appropriate blood product for a client with an elevated aPTT as it contains various coagulation factors that can help correct coagulopathies and prevent bleeding. Elevated aPTT indicates a deficiency in specific clotting factors, and fresh frozen plasma is rich in these factors. Whole blood, platelets, and packed red blood cells do not contain the necessary coagulation factors to correct an elevated aPTT, so they are not indicated in this situation.
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