ATI LPN
LPN Pharmacology Assessment A
1. In monitoring the effectiveness of warfarin therapy for a client with a history of atrial fibrillation, which laboratory value should the nurse monitor?
- 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 crucial laboratory values to monitor the effectiveness of warfarin therapy in clients with atrial fibrillation. These values help ensure that the client is within the therapeutic range and that the anticoagulant effect of warfarin is appropriate. Monitoring aPTT, platelet count, or ESR is not directly related to assessing the effectiveness of warfarin therapy in these cases.
2. The nurse is preparing a client for discharge after a myocardial infarction (MI). Which instruction is most important for the nurse to reinforce with the client?
- A. Avoid engaging in sexual activity for at least 6 weeks.
- B. Engage in moderate physical activity daily.
- C. Take prescribed medications even if you feel well.
- D. Return to work only when medically cleared.
Correct answer: C
Rationale: The most critical instruction for a client after a myocardial infarction is to continue taking prescribed medications even if they feel well. This is essential in preventing another myocardial infarction or other complications. Discontinuing medications prematurely can be detrimental to the client's recovery and may increase the risk of further cardiovascular events. Choices A, B, and D are incorrect because engaging in sexual activity, physical activity, or returning to work are important aspects of the client's recovery, but not as crucial as ensuring medication compliance to prevent further cardiac issues.
3. A client in the emergency department is bleeding profusely from a gunshot wound to the abdomen. In what position should the nurse immediately place the client to promote maintenance of the client's blood pressure above a systolic pressure of 90 mm Hg?
- A. Place the client in a 45-degree Trendelenburg position to promote cerebral blood flow.
- B. Turn the client prone to apply pressure on the abdominal wound to help staunch the bleeding.
- C. Maintain the client in a supine position to reduce diaphragmatic pressure and visualize the wound.
- D. Put the client on the right side to apply pressure to the liver and spleen to stop hemorrhaging.
Correct answer: C
Rationale: In a client with profuse bleeding from a gunshot wound to the abdomen, maintaining the client in a supine position is essential to manage blood pressure. This position helps in reducing diaphragmatic pressure and allows for proper visualization of the wound, aiding in prompt assessment and intervention to control the bleeding and stabilize the client's condition. Placing the client in a 45-degree Trendelenburg position (Choice A) could worsen the bleeding by increasing intrathoracic pressure and venous return, potentially leading to further hemorrhage. Turning the client prone (Choice B) may not be feasible in this situation and can delay essential interventions. Placing the client on the right side (Choice D) does not address the immediate need to manage the bleeding and stabilize the client's condition.
4. A client is admitted to the emergency department with a suspected myocardial infarction (MI). The nurse should prepare the client for which immediate diagnostic test?
- A. Chest x-ray
- B. Electrocardiogram (ECG)
- C. Echocardiogram
- D. Coronary angiography
Correct answer: B
Rationale: An Electrocardiogram (ECG) is the most immediate and essential test to diagnose a myocardial infarction (MI) and assess the extent of heart damage. An ECG can quickly identify changes in the heart's electrical activity, allowing prompt initiation of appropriate interventions. A chest x-ray (Choice A) may show other conditions affecting the heart, but it is not the immediate test of choice for diagnosing an MI. An echocardiogram (Choice C) and coronary angiography (Choice D) are valuable in further assessing cardiac function and anatomy post-MI but are not the first-line diagnostic tests due to their time-consuming nature compared to an ECG.
5. The healthcare professional is assisting in the care of a client diagnosed with deep vein thrombosis (DVT). Which instruction should be reinforced to prevent complications?
- A. Elevate the affected leg using pillows.
- B. Perform leg exercises while sitting.
- C. Wear snug compression stockings.
- D. Avoid applying ice packs to injuries.
Correct answer: A
Rationale: Elevating the affected leg using pillows is crucial in managing deep vein thrombosis (DVT) as it helps reduce swelling and promote venous return, thereby decreasing the risk of complications such as pulmonary embolism. This position aids in improving blood circulation and preventing blood clots from forming or worsening in the affected leg. Performing leg exercises while sitting might increase the risk of dislodging a blood clot. While snug compression stockings are beneficial, the primary focus should be on elevation. Avoiding ice packs on injuries is unrelated to DVT management.
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