ATI RN
ATI Pharmacology
1. A client is receiving heparin therapy. Which laboratory value should be monitored by the nurse to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The activated partial thromboplastin time (aPTT) is specifically used to monitor the effectiveness of heparin therapy. It should be maintained at 1.5 to 2 times the normal level. Monitoring aPTT helps ensure that the therapeutic range of heparin is achieved to prevent clot formation while minimizing the risk of bleeding complications. Choice A (PT) is incorrect as it is used to monitor warfarin therapy, not heparin. Choice C (INR) is also incorrect as it is primarily used to monitor warfarin therapy. Choice D (Platelet count) is not directly related to monitoring the effectiveness of heparin therapy.
2. A client has a new prescription for Nifedipine. Which of the following adverse effects should the nurse monitor?
- A. Hypertension
- B. Edema
- C. Hyperglycemia
- D. Bradycardia
Correct answer: B
Rationale: The correct answer is B: Edema. Nifedipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should closely observe the client's lower extremities for any signs of swelling, which could indicate the development of edema. Choice A, Hypertension, is incorrect because Nifedipine is used to treat hypertension, not cause it. Choice C, Hyperglycemia, is unrelated to Nifedipine's common adverse effects. Choice D, Bradycardia, is not typically associated with Nifedipine use.
3. A client with angina is being taught how to use nitroglycerin transdermal ointment. Which instruction should the nurse include?
- A. Remove the prior dose before applying a new dose.
- B. Rub the ointment directly into the skin until it is no longer visible.
- C. Cover the applied ointment with a clean gauze pad.
- D. Apply the ointment to the same skin area each time.
Correct answer: A
Rationale: The correct instruction is to remove the prior dose before applying a new one to prevent toxicity. Nitroglycerin ointment can cause adverse effects if accumulated doses are not removed. Rubbing the ointment until it's not visible or covering it with gauze may alter absorption. Applying it to the same area each time can lead to skin irritation or desensitization.
4. A client is receiving discharge teaching for Metronidazole prescribed for an infection. Which statement by the client indicates an understanding of the teaching?
- A. I should avoid drinking alcohol while taking this medication.
- B. I should take this medication with food.
- C. I should increase my intake of dairy products while taking this medication.
- D. I should avoid taking dairy products while taking this medication.
Correct answer: A
Rationale: The correct answer is A. Alcohol should be avoided while taking Metronidazole because it can lead to a disulfiram-like reaction, causing severe nausea and vomiting. It is important for the client to understand this to prevent adverse reactions and ensure the effectiveness of the medication in treating the infection. Choices B, C, and D are incorrect because taking Metronidazole with food is recommended to decrease gastrointestinal upset, and there is no specific need to increase or avoid dairy products while taking this medication.
5. A patient with hypertension is taking an ACE inhibitor to lower blood pressure. What should the nurse advise the patient to avoid in their diet?
- A. Vinegar
- B. Apples
- C. Salt substitutes
- D. Tomatoes
Correct answer: C
Rationale: Patients taking ACE inhibitors should avoid salt substitutes as they often contain potassium, which can lead to hyperkalemia. Hyperkalemia is an elevated level of potassium in the blood that can be dangerous, especially for patients on ACE inhibitors. Vinegar, apples, and tomatoes do not pose a risk for patients taking ACE inhibitors. Therefore, the nurse should advise the patient to avoid salt substitutes to prevent potential complications.
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