NUR 2214 Nursing Care of Older Adult Module 2
Theories and Terms (Questions And Answers
2022 Latest Solution Update)
What do the biological theories
... [Show More] of aging do? - ANS-Help nurses understand older adult
changes, behaviors, and to recognize problems and provide interventions over time. Not
just one theories explains it, must be supported with evidence over time.
What is the free radical theory? - ANS-The idea that molecules that are harmful to the
human body that are unstable move around the body, causing harm to living cells. This
can disrupt metabolism and cell processes, leading to disease.
How does the free radical theory work? - ANS-During normal cell molecule formation,
electrons are shared with each other, but from aging or damage to cell DNA from over
exposure to radiation and pollution, the molecule splits and does not pair with an
electron, causing a free radical to be formed and that can harm cells.
What types of diseases does the free radical theory propose when these cells travel in
the body with aging? - ANS-cancers, diabetes, arthritis, atherosclerosis
What can be taken to neutralize free radicals? - ANS-antioxidants- in the form of food,
vitamins. they help to donate electrons from stale atoms
What is the cross linkage theory? - ANS-when free radicals interact or connect with cell
molecules and connective tissue that causes tissues to be damaged and unable be
repaired. when it is damaged, this can lead to disease and function problems in older
adults
What is connective tissue? - ANS-matrix that provides support, binds tissues in the body
such as organs, muscles, bones and joints, adipose tissues, cartilage, blood and lymph.
What happens when free radical cells destroy connective tissue in older adults? - ANSDiseases and functional issues
What interventions can the nurse do to limit free radical spread and promote health with
cross linkage theory? - ANS-smoking cessation, sun exposure, UV light exposure, diet
management
What is the biological clock theory? - ANS-The idea that we as humans have a
predetermined number of cell divisions that will occur during our lifetime, and that each
one is a tick of a clock. these are genetically predetermined and as older adults, these
cell divisions are slowed down, so more cell loss is perceived
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