When asked by an older adult client, "What is the difference between my normal la-boratory values and the ones for a 55 year old?" The nurse responds based on the under-standing that there are:
a. age-adjusted ranges for older adults for all of the common laboratory findings, similar to those for infants and children
b. no age-adjusted ranges for older adults due to the large variations within the age group and the increasing number of factors that influence the results
c. age-adjusted ranges only for the over-85 age-group; there are no expected changes in the 65- to 84-year-old age-group
d. age-adjusted ranges only for the hematological tests, which are due mostly to changes in the bone marrow
ANS: B
There are no age-adjusted ranges for laboratory values due to the variation within the group as well as the many chronic illnesses of older adults. Variations are more likely to be seen the older one is. Although several age-related hematological changes occur mainly from changes in the bone marrow, few are clinically significant.
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