ATI LPN
LPN Pharmacology Assessment A
1. A client is receiving intravenous heparin therapy for the treatment of deep vein thrombosis (DVT). Which laboratory test result should the LPN/LVN monitor to ensure the client is receiving a therapeutic dose?
- A. Prothrombin time (PT)
- B. Activated partial thromboplastin time (aPTT)
- C. International normalized ratio (INR)
- D. Platelet count
Correct answer: B
Rationale: The correct laboratory test result that the LPN/LVN should monitor to ensure the client is receiving a therapeutic dose of heparin therapy is the activated partial thromboplastin time (aPTT). The aPTT test is specifically used to monitor heparin therapy, ensuring that the dose administered is within the therapeutic range. Monitoring aPTT helps to prevent complications such as bleeding or clot formation by maintaining the appropriate anticoagulant effect of heparin. Prothrombin time (PT) and International normalized ratio (INR) are more commonly used to monitor warfarin therapy, not heparin. Platelet count is not a direct indicator of heparin's therapeutic effect and is not used to monitor heparin therapy.
2. A client with a history of angina pectoris reports chest pain while ambulating in the corridor. What should the nurse do first?
- A. Check the client's vital signs.
- B. Assist the client to sit or lie down.
- C. Administer sublingual nitroglycerin.
- D. Apply nasal oxygen at a rate of 2 L/min.
Correct answer: B
Rationale: When a client with a history of angina pectoris experiences chest pain while ambulating, the priority action for the nurse is to assist the client to sit or lie down. This helps reduce the demand on the heart by decreasing physical exertion. Checking vital signs, administering medication, or applying oxygen can follow once the client is in a more comfortable position. Checking vital signs (Choice A) may be important but addressing the immediate discomfort by positioning the client comfortably takes precedence. Administering sublingual nitroglycerin (Choice C) is appropriate but should come after ensuring the client's comfort. Applying nasal oxygen (Choice D) can be beneficial, but it should not be the first action; assisting the client to sit or lie down is the initial priority.
3. After administering nitroglycerin to a client with coronary artery disease (CAD) who reports chest pain, what should be the nurse's next priority action?
- A. Obtain a 12-lead ECG
- B. Monitor the client's blood pressure
- C. Notify the healthcare provider
- D. Administer a second dose of nitroglycerin
Correct answer: B
Rationale: The correct next priority action after administering nitroglycerin to a client with CAD experiencing chest pain is to monitor the client's blood pressure. Nitroglycerin can cause hypotension, so it is crucial to assess and monitor the client's blood pressure for any signs of decreased perfusion or adverse effects. Obtaining a 12-lead ECG may be important but is not the immediate priority. Notifying the healthcare provider and administering a second dose of nitroglycerin should only be considered after ensuring the client's blood pressure is stable.
4. 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.
5. 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.
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