ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for metformin. Which of the following statements should the nurse include in the teaching?
- A. Take the medication with a full glass of water.
- B. Monitor for signs of hypoglycemia.
- C. Increase your fluid intake.
- D. Expect a metallic taste in your mouth.
Correct answer: C
Rationale: Increasing fluid intake is an important teaching point for clients starting metformin to prevent gastrointestinal discomfort, a common side effect of this medication. Metformin can cause gastrointestinal symptoms such as nausea, bloating, and diarrhea, which can be reduced by staying well-hydrated. Therefore, advising the client to increase their fluid intake will help minimize these side effects and improve medication tolerance. The other options are incorrect: Option A is a general instruction for taking medications but not specifically related to metformin. Option B is incorrect because metformin typically does not cause hypoglycemia but rather hyperglycemia. Option D is also incorrect as a metallic taste in the mouth is not a common side effect of metformin.
2. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor to assess the effectiveness of the medication?
- A. Activated partial thromboplastin time (aPTT)
- B. Prothrombin time (PT) and international normalized ratio (INR)
- C. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: B
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are the laboratory values used to monitor the effectiveness of warfarin therapy. These values help ensure that the client is within the therapeutic range for anticoagulation. PT measures the time it takes for blood to clot, while INR standardizes PT results to minimize variations between laboratories. Monitoring these values is crucial to prevent complications such as bleeding or clot formation. Activated partial thromboplastin time (aPTT) (Choice A) is more commonly used to monitor heparin therapy. Platelet count (Choice C) assesses the number of platelets in the blood and is not specific to warfarin therapy. Erythrocyte sedimentation rate (ESR) (Choice D) is a non-specific marker of inflammation and is not used to monitor the effectiveness of warfarin therapy.
3. A client with myocardial infarction suddenly becomes tachycardic, shows signs of air hunger, and begins coughing frothy, pink-tinged sputum. The nurse listens to breath sounds, expecting to hear which breath sounds bilaterally?
- A. Rhonchi
- B. Crackles
- C. Wheezes
- D. Diminished breath sounds
Correct answer: B
Rationale: In this scenario, the client is exhibiting signs of pulmonary edema, which can occur as a complication of myocardial infarction. Crackles are typically heard in cases of pulmonary edema, characterized by fluid accumulation in the lungs. These crackling sounds are heard during inspiration and sometimes expiration and are an indication of fluid-filled alveoli. Therefore, when assessing the client with these symptoms, the nurse would expect to hear crackles bilaterally. Rhonchi, which are coarse rattling respiratory sounds, are typically associated with conditions like bronchitis or pneumonia, not pulmonary edema. Wheezes are high-pitched musical sounds heard in conditions like asthma or COPD, not commonly present in pulmonary edema. Diminished breath sounds suggest decreased airflow or lung consolidation, not typical findings in pulmonary edema.
4. An ambulatory clinic nurse is interviewing a client who is complaining of flu-like symptoms. The client suddenly develops chest pain. Which question best assists the nurse in discriminating pain caused by a non-cardiac problem?
- A. Can you describe the pain to me?
- B. Have you ever experienced this pain before?
- C. Does the pain get worse when you breathe in?
- D. Can you rate the pain on a scale of 1 to 10, with 10 being the worst?
Correct answer: C
Rationale: The correct answer is C. Pain that worsens with breathing in can indicate pleuritic chest pain, which is non-cardiac in nature. This specific question helps in differentiating non-cardiac causes from cardiac causes of chest pain, as cardiac pain typically does not worsen with breathing. Choices A, B, and D are less specific in discriminating between cardiac and non-cardiac chest pain.
5. The nurse is teaching a client with coronary artery disease (CAD) about the risk factors for the disease. Which modifiable risk factor should the nurse emphasize?
- A. Family history
- B. Age
- C. Cigarette smoking
- D. Gender
Correct answer: C
Rationale: Cigarette smoking is a modifiable risk factor for coronary artery disease (CAD) as it can be changed or controlled to reduce the risk of developing CAD. Family history, age, and gender are non-modifiable risk factors that cannot be changed. Emphasizing the importance of quitting smoking can help the client reduce their risk of CAD and improve their overall cardiovascular health. Therefore, the correct answer is C. Choice A (Family history), B (Age), and D (Gender) are non-modifiable risk factors and not the focus of modifiable risk reduction strategies in CAD prevention.
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