The urinalysis results for a client diagnosed with chronic kidney disease (CKD) indicate the presence of protein in the urine. The impairment of which structure within the kidney results in proteinuria?
Loop of Henle.
Glomerulus.
Distal convoluted tubule.
Bowman’s capsule.
The Correct Answer is B
Choice A reason: The loop of Henle regulates water and electrolyte reabsorption, not protein filtration. Proteinuria results from glomerular damage, allowing proteins to leak into urine. The loop’s role in concentration does not involve protein handling, making it incorrect for the structure impaired in CKD-related proteinuria.
Choice B reason: The glomerulus filters blood, normally preventing large proteins from entering urine. In CKD, glomerular damage (e.g., from hypertension or diabetes) increases permeability, causing proteinuria. This is a hallmark of glomerular injury, aligning with CKD’s pathophysiology, making the glomerulus the correct structure responsible for proteinuria.
Choice C reason: The distal convoluted tubule regulates electrolytes and acid-base balance, not protein filtration. Proteinuria stems from glomerular dysfunction, not tubular issues. The distal tubule’s role in reabsorption does not involve proteins, making it incorrect for the structure causing proteinuria in chronic kidney disease.
Choice D reason: Bowman’s capsule collects glomerular filtrate but does not filter proteins itself. Proteinuria occurs due to glomerular barrier damage, allowing proteins to pass into the capsule. While adjacent, the capsule is not the primary impaired structure, making the glomerulus the correct choice for CKD-related proteinuria.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Instilling medication after cleaning the eyes is correct, as it ensures a clear surface for antibiotic absorption. This does not contribute to infection persistence but supports treatment efficacy. The issue lies with warm compresses, which may exacerbate bacterial growth, making this choice incorrect.
Choice B reason: Washing hands with antibacterial soap before and after eye care prevents contamination and supports infection control. This practice reduces infection spread, not persistence. Prolonged warm compresses, which promote bacterial proliferation, are the issue, making hand hygiene an incorrect contributor to the infection’s persistence.
Choice C reason: Applying warm compresses for several hours creates a moist, warm environment that may promote bacterial growth, potentially worsening conjunctivitis despite antibiotics. Brief compresses can soothe, but prolonged use counteracts treatment, aligning with microbiological evidence that warmth fosters bacterial persistence in ocular infections.
Choice D reason: Wiping secretions downward and outward from the inner canthus prevents contamination of the unaffected eye, supporting infection control. This does not contribute to infection persistence. Prolonged warm compresses are the likely cause, as they create conditions favoring bacterial growth, making this choice incorrect.
Correct Answer is C
Explanation
Choice A reason: Hypertensive crisis is not a feature of Addison’s disease, which causes hypotension due to cortisol and aldosterone deficiency. Cortisol kits address adrenal insufficiency during stress, not hypertension. This choice is incorrect, as it misaligns with Addison’s pathophysiology and cortisol’s role.
Choice B reason: Cortisol is not used for systemic allergic reactions, which require antihistamines or epinephrine. Addison’s patients need cortisol for adrenal insufficiency during stress, as their bodies cannot produce it. This choice is incorrect, as cortisol kits address hypoadrenalism, not anaphylaxis.
Choice C reason: Addison’s disease involves adrenal insufficiency, impairing cortisol production. Stress increases cortisol demand, which the patient cannot meet, risking adrenal crisis. Carrying a cortisol kit allows rapid administration during stress, preventing life-threatening hypotension or shock, aligning with endocrinology evidence for Addison’s management.
Choice D reason: Hyperglycemia is unrelated to Addison’s disease, which does not typically affect glucose metabolism. Cortisol kits address adrenal insufficiency, not blood glucose. This choice is incorrect, as cortisol replacement is for stress-induced hypoadrenalism, not glycemic control, per Addison’s pathophysiological basis.
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