A nurse is teaching a class on systemic lupus erythematosus (SLE). Which statement, if made by the nurse, is not accurate?
It is an autoimmune disease
Most people survive the disease, but it can be fatal
Family history of SLE is not a risk factor for the disease
SLE is a chronic, progressive connective tissue disorder
The Correct Answer is C
Choice A reason: Systemic lupus erythematosus (SLE) is an autoimmune disease where the immune system produces autoantibodies, such as anti-nuclear antibodies, that attack healthy tissues like joints, skin, kidneys, and other organs. This leads to chronic inflammation and tissue damage. B-cell hyperactivity and T-cell dysfunction drive this process, causing systemic effects. This statement is accurate, as autoimmunity defines SLE’s pathology, distinguishing it from non-autoimmune disorders.
Choice B reason: Most individuals with SLE survive due to improved treatments like immunosuppressive drugs, with over 90% surviving beyond 10 years. However, it can be fatal due to complications such as kidney failure, cardiovascular disease, or infections during severe flares. This statement is accurate, reflecting the disease’s manageable yet potentially lethal nature, especially with organ involvement.
Choice C reason: Family history is a known risk factor for SLE. Genetic predisposition, particularly HLA gene variants, increases susceptibility. First-degree relatives of SLE patients have a 5-10% higher risk of developing the disease compared to the general population. This statement is inaccurate, as genetics significantly influences SLE onset, making it a key risk factor.
Choice D reason: SLE is a chronic, progressive connective tissue disorder characterized by periods of flares and remission. It affects connective tissues like joints and skin, with progressive organ damage possible in severe cases. This statement is accurate, as SLE’s chronic nature and connective tissue involvement are central to its pathophysiology, often requiring long-term management.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Excessive bile acid absorption, often due to ileal dysfunction, reduces bile acid availability in the gallbladder, promoting cholesterol supersaturation and gallstone formation. This contributes to cholelithiasis, particularly cholesterol gallstones, by altering bile composition, making this condition a significant risk factor, not the least likely.
Choice B reason: Elevated serum calcium (hypercalcemia) is not directly linked to cholelithiasis. While hypercalcemia can cause kidney stones, gallstone formation is driven by bile composition changes, like cholesterol or bile acid imbalances, not serum calcium levels. This makes it the least likely contributor to gallstone development.
Choice C reason: Elevated dietary cholesterol increases hepatic cholesterol secretion into bile, leading to supersaturation and cholesterol gallstone formation. This is a well-established risk factor for cholelithiasis, as excess cholesterol overwhelms bile acid and phospholipid solubilization, promoting crystal formation, making it a significant contributor, not the least likely.
Choice D reason: Inflammation of epithelial tissue, such as in chronic cholecystitis, promotes gallstone formation by altering gallbladder motility and bile stasis. Inflammatory changes disrupt bile acid metabolism and increase mucin production, facilitating stone nucleation. This condition is a known risk factor for cholelithiasis, not the least likely contributor.
Correct Answer is C
Explanation
Choice A reason: An ileal conduit is typically a permanent procedure for bladder cancer after cystectomy, as the bladder is removed. Reversibility is rare and depends on specific circumstances, not guaranteed. This statement is inaccurate, as it falsely suggests that ileal conduits are always temporary and reversible.
Choice B reason: Diverting urine to the sigmoid colon describes a ureterosigmoidostomy, not an ileal conduit. In an ileal conduit, urine is diverted through an ileal segment to an abdominal stoma, not the rectum. This statement is inaccurate, as it describes a different urinary diversion procedure.
Choice C reason: An ileal conduit involves diverting urine from the ureters through a segment of ileum to a stoma on the abdomen, where urine is collected in an external pouch. This is the standard procedure for bladder cancer post-cystectomy, making this statement accurate and descriptive of the ileal conduit.
Choice D reason: An ileal conduit does not create an opening in the bladder; the bladder is often removed in bladder cancer. Urine is diverted from the ureters to a stoma, bypassing the bladder. This statement is inaccurate, as it misrepresents the anatomical changes in an ileal conduit.
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