ATI RN
ATI Pharmacology
1. A client is receiving heparin therapy. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?
- A. PT
- B. aPTT
- C. INR
- D. Platelet count
Correct answer: B
Rationale: The corrected answer is B: aPTT. The activated partial thromboplastin time (aPTT) is the laboratory value used to monitor the effectiveness of heparin therapy. The aPTT should be maintained at 1.5 to 2 times the normal level to ensure therapeutic anticoagulation. Monitoring aPTT helps healthcare providers adjust heparin doses to achieve the desired anticoagulant effects and prevent complications such as bleeding or clotting. Choice A, PT (prothrombin time), is used to monitor warfarin therapy, not heparin. Choice C, INR (international normalized ratio), is also used to monitor warfarin therapy. Choice D, platelet count, is important for assessing the risk of bleeding, but it does not directly monitor the effectiveness of heparin therapy.
2. When educating a patient on taking levothyroxine, a drug used to balance thyroid activity, what should you include in their education?
- A. Don't disregard side effects and consult your healthcare professionals
- B. Take this at the same time every day
- C. Thyroid tests are necessary while taking this drug
- D. It is not recommended to take this drug if you have recently had a myocardial infarction
Correct answer: B
Rationale: The correct answer is to take levothyroxine at the same time every day. Consistent timing helps maintain stable thyroid levels, ensuring the effectiveness of the medication. It is important to establish a routine to optimize its therapeutic benefits. Choice A is incorrect as patients should not ignore side effects but should consult healthcare professionals if they experience any. Choice C is incorrect because thyroid tests may still be necessary to monitor thyroid function while on levothyroxine. Choice D is incorrect as it is not advisable to take levothyroxine if the patient has recently had a myocardial infarction without consulting their healthcare provider.
3. A client with heart failure is prescribed digoxin. Which of the following findings should the nurse identify as an adverse effect of digoxin?
- A. Constipation
- B. Blurred vision
- C. Nausea
- D. Headache
Correct answer: B
Rationale: Blurred vision is a common adverse effect of digoxin and can indicate toxicity. Monitoring for visual changes is essential to prevent serious complications in clients taking digoxin.
4. A client is being taught by a nurse about long-term use of oral prednisone for chronic asthma. The nurse should instruct the client to monitor for which of the following adverse effects?
- A. Weight Gain
- B. Nervousness
- C. Bradycardia
- D. Constipation
Correct answer: A
Rationale: Weight gain is a common adverse effect of long-term prednisone use. Prednisone, a corticosteroid medication, can cause fluid retention and increased appetite, leading to weight gain. Nervousness (choice B) is more commonly associated with stimulant medications or excessive caffeine intake. Bradycardia (choice C) refers to a slow heart rate and is not a typical adverse effect of prednisone. Constipation (choice D) is not a common side effect of prednisone; in fact, prednisone is more likely to cause gastrointestinal issues such as increased appetite and weight gain.
5. A client has a new prescription for Furosemide. Which of the following adverse effects should the nurse monitor?
- A. Hyperkalemia
- B. Hyponatremia
- C. Hypernatremia
- D. Hypercalcemia
Correct answer: B
Rationale: Furosemide is a diuretic that commonly causes hyponatremia (low sodium levels) due to its effect on sodium and water excretion. The nurse must closely monitor the client for signs of hyponatremia, such as weakness, confusion, and muscle cramps, and promptly intervene to prevent complications. Choices A, C, and D are incorrect because Furosemide is not associated with hyperkalemia, hypernatremia, or hypercalcemia. Understanding the medication's mechanism of action helps prioritize monitoring for potential adverse effects.
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