ATI LPN
LPN Pharmacology
1. A client is admitted to the hospital with a venous stasis leg ulcer. The nurse inspects the ulcer expecting to note which observation?
- A. The ulcer has a pale-colored base.
- B. The ulcer is deep, with even edges.
- C. The ulcer has little granulation tissue.
- D. The ulcer has a brownish or 'brawny' appearance.
Correct answer: D
Rationale: When assessing a venous stasis leg ulcer, the nurse should expect to note a brownish or 'brawny' appearance. This discoloration is often due to hemosiderin deposits. The correct answer is not A because venous stasis ulcers typically do not have a pale-colored base. Choice B is incorrect as venous stasis ulcers usually have irregular, shallow edges, not deep and even edges. Choice C is incorrect as venous stasis ulcers often have excess granulation tissue, not little granulation tissue. Recognizing the brownish or 'brawny' appearance is crucial for accurate diagnosis and appropriate treatment of venous stasis leg ulcers.
2. A client has a new prescription for heparin. Which of the following laboratory results should be monitored to evaluate the effectiveness of the medication?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Platelet count
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the laboratory result that should be monitored to evaluate the effectiveness of heparin. Heparin works by prolonging the aPTT, and monitoring this parameter helps ensure the medication's effectiveness and safety in preventing clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor the effectiveness of warfarin, another anticoagulant. Platelet count is essential to assess platelet function and clotting disorders, but it is not specifically used to monitor heparin therapy.
3. A client with a diagnosis of deep vein thrombosis (DVT) has been placed on bed rest. The LPN/LVN should reinforce which instruction to the client to prevent complications?
- A. Perform ankle pumps and circles every 1 to 2 hours.
- B. Use a heating pad to relieve pain in the affected leg.
- C. Keep the affected leg flat and avoid elevation.
- D. Wear tight compression stockings to prevent swelling.
Correct answer: A
Rationale: Performing ankle pumps and circles every 1 to 2 hours is crucial for a client with DVT on bed rest. These exercises promote venous return, preventing stasis and reducing the risk of complications such as pulmonary embolism. Ankle pumps help activate the calf muscle pump, assisting in propelling blood back to the heart and preventing blood clots from forming or worsening. Choice B is incorrect because using a heating pad can increase blood flow to the area, potentially dislodging a clot. Choice C is incorrect because elevation helps reduce swelling and improve venous return. Choice D is incorrect because although compression stockings can be beneficial, they are not the most important instruction for preventing complications in this scenario.
4. The client is receiving heparin therapy for deep vein thrombosis (DVT). Which lab test should be monitored to evaluate the effectiveness of heparin?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Fibrinogen levels
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the appropriate lab test to monitor the therapeutic effectiveness of heparin therapy. Heparin affects the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps ensure the client is within the therapeutic range to prevent clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, a different anticoagulant that affects the extrinsic pathway of the coagulation cascade. Fibrinogen levels are not specific to monitoring heparin therapy.
5. The client with a history of angina pectoris reports chest pain unrelieved by nitroglycerin. Which action should the nurse take next?
- A. Administer another dose of nitroglycerin.
- B. Notify the healthcare provider immediately.
- C. Have the client lie down and rest.
- D. Encourage the client to take deep breaths.
Correct answer: B
Rationale: When a client with a history of angina pectoris reports chest pain unrelieved by nitroglycerin, it may indicate a myocardial infarction, also known as a heart attack. In this situation, the nurse should immediately notify the healthcare provider to ensure prompt evaluation and appropriate intervention. Delay in seeking medical attention for chest pain unrelieved by nitroglycerin can be life-threatening, as it might be a sign of a more serious cardiac event. Administering another dose of nitroglycerin (Choice A) without further evaluation can be risky, as the client's condition may require a different intervention. Having the client lie down and rest (Choice C) or encouraging deep breaths (Choice D) are not appropriate actions in this scenario where a more serious cardiac event needs to be ruled out.
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