Some older adults have impaired inflammation and wound healing because of which problem?
Number of mast cells is insufficient
Circulatory impairment
Underlying chronic illness(es)
Complement and chemotaxis are deficient
The Correct Answer is C
Choice A reason: Insufficient mast cell numbers are not a primary cause of impaired healing in older adults. Mast cells contribute to inflammation, but chronic diseases like diabetes disrupt multiple healing pathways more significantly, making this incorrect.
Choice B reason: Circulatory impairment, such as atherosclerosis, can delay healing by limiting oxygen and nutrient delivery. However, it’s often a consequence of chronic illnesses like diabetes, which broadly affect healing, making this less primary than chronic conditions.
Choice C reason: Underlying chronic illnesses, like diabetes or cardiovascular disease, impair inflammation and wound healing in older adults by disrupting immune function, collagen deposition, and perfusion. These prevalent conditions directly impact healing, making this the correct cause.
Choice D reason: Complement and chemotaxis deficiencies occur in specific immunodeficiencies, not commonly in aging. Chronic illnesses like diabetes more consistently impair healing through systemic effects, making this a less likely primary cause.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Vitamin D deficiency affects calcium and bone health, not creatinine or BUN levels, which reflect kidney function. Elevated BUN and creatinine point to dehydration or kidney issues, so this is incorrect for the lab findings.
Choice B reason: Elevated creatinine and BUN indicate dehydration or kidney dysfunction, as these markers rise when kidneys fail to clear waste or when blood volume is low. This matches the patient’s symptoms, making it the correct choice.
Choice C reason: Respiratory acidosis affects blood pH and CO2, not creatinine or BUN, which are renal markers. Kidney dysfunction or dehydration better explain the lab results, so this is incorrect for the findings.
Choice D reason: Liver failure may elevate other markers (e.g., bilirubin), but BUN and creatinine are kidney-specific. Dehydration or kidney dysfunction align with the labs and symptoms, so this is incorrect.
Correct Answer is C
Explanation
Choice A reason: Pyuria, urgency, and frequency are typical UTI symptoms, but elderly patients often present with atypical signs like confusion. Confusion is more prominent in this age group, so this is less specific and incorrect.
Choice B reason: Dysuria, frequency, and suprapubic pain are common UTI symptoms, but elderly patients may show confusion instead of classic signs. Confusion and frequency are more likely, so this is incorrect.
Choice C reason: In elderly patients (85 years), UTIs often cause confusion due to altered mental status, alongside frequency. Atypical symptoms like confusion are common, making this the correct manifestation for this age group.
Choice D reason: Hematuria and flank pain suggest complicated UTIs or kidney issues, not typical in elderly UTI presentation. Confusion and frequency are more expected, so this is incorrect.
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