Following a knee arthroplasty, a patient has a continuous passive motion machine for the affected joint. The nurse explains to the patient that this device is used for what purpose?

Correct Answer: B

Rationale: The correct answer is B) To promote early joint mobility and increase knee flexion. Explanation: Following a knee arthroplasty, using a continuous passive motion (CPM) machine helps in promoting early joint mobility by providing controlled movement to the knee joint. This aids in preventing stiffness and promoting circulation without putting excessive strain on the recovering joint. Increasing knee flexion through controlled motion also helps in preventing the formation of scar tissue and adhesions in the joint, contributing to a smoother recovery process. Option A) To relieve edema and pain at the incision site: While using CPM can indirectly help with reducing edema by promoting circulation, its primary purpose is not to directly relieve edema and pain. Option C) To prevent venous stasis and the formation of a deep venous thrombosis: While promoting circulation is a benefit of using CPM, its main purpose is to promote joint mobility rather than solely focusing on preventing venous stasis and deep venous thrombosis. Option D) To improve arterial circulation to the affected extremity to promote healing: While improving circulation is a benefit of using CPM, the primary purpose of the device in this context is to promote joint mobility and increase knee flexion rather than focusing on improving arterial circulation specifically. Educational Context: Understanding the purpose of using a CPM machine post-knee arthroplasty is crucial for both healthcare professionals and patients. By promoting joint mobility and increasing knee flexion, patients can experience a smoother recovery process with improved outcomes. Educating patients on the rationale behind using specific devices post-surgery empowers them to actively participate in their recovery and adhere to their treatment plan effectively.

Correct Answer: B

Rationale: In this question, the correct answer is B) Felty syndrome. Rheumatoid nodules are a common extraarticular manifestation of rheumatoid arthritis (RA). Felty syndrome is a complication of RA characterized by the triad of rheumatoid arthritis, splenomegaly, and neutropenia. Patients with Felty syndrome often present with rheumatoid nodules, making it the most likely extraarticular manifestation to be seen in these patients. Option A) Lyme disease is incorrect because it is a separate infectious disease caused by a tick bite, not directly related to RA. Option C) Sjögren's syndrome is incorrect as it is an autoimmune condition primarily affecting the exocrine glands, leading to symptoms like dry eyes and dry mouth, but it is not typically associated with rheumatoid nodules. Option D) Spondyloarthropathies are a group of inflammatory diseases that primarily affect the spine and joints. While they can share some similarities with RA, they do not commonly present with rheumatoid nodules as seen in Felty syndrome. Educationally, understanding the various extraarticular manifestations of RA is crucial for healthcare professionals to provide comprehensive care to patients with this condition. Recognizing the specific manifestations can aid in early diagnosis, appropriate management, and improved patient outcomes. This question highlights the importance of differentiating between the extraarticular manifestations of RA to guide clinical decision-making and enhance patient care.

Correct Answer: D

Rationale: The correct answer is D) Cognitive dysfunction from immune complex deposit in the brain. In advanced systemic lupus erythematosus (SLE), immune complexes can deposit in various organs, including the brain, leading to cognitive dysfunction. This can manifest as memory loss, confusion, and other neuropsychiatric symptoms. Option A) Proteinuria from early glomerulonephritis is a common renal manifestation of SLE, but it is not considered an ominous sign of advanced disease. It typically occurs earlier in the disease course. Option B) Anemia from antibodies against blood cells is a common hematologic manifestation of SLE but is not specific to advanced disease. It can occur at any stage of the disease. Option C) Dysrhythmias from fibrosis of the atrioventricular node is not a typical manifestation of advanced SLE. While cardiac involvement can occur in SLE, dysrhythmias are not a hallmark of advanced disease. Educationally, understanding the neurological manifestations of advanced SLE is crucial for healthcare providers to recognize and manage the potentially severe consequences of the disease. Recognizing cognitive dysfunction as an ominous sign can prompt timely intervention and prevent further neurological damage in patients with advanced SLE.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.