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cnv02 cnv02
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6 years ago
An 88-year-old resident of a long-term care home has been suffering from a 3-day onset of increased shortness of breath and decreased oxygen saturation.
 
  At the hospital, an anterior-posterior chest x-ray and sputum culture and sensitivity have confirmed a diagnosis of bacterial pneumonia, yet the client's tympanic temperature has not exceeded 37.3 C (99.2 F). The health care team would recognize that which of the following phenomena likely underlies this situation?
  A)
  An older adult is often insensitive to exogenous pyrogens.
  B)
  An older adult is sometimes incapable of vasodilation.
  C)
  An older adult's hypothalamus has diminished thermoregulatory ability.
  D)
  Infections manifest by cognitive changes in older adults.
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wrote...
6 years ago
Ans:
C

Feedback:

The hypothalamus in older adults is often less capable of thermoregulation than in younger clients. There are sometimes alterations in the release of endogenous pyrogens and deficits in vasoconstriction. While infections do often manifest with cognitive changes in older adults, this does not explain why fever is precluded.
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