The U.S. Preventive Services Task Force recommended that women who are not at risk for breast cancer wait to have yearly screening mammograms until age 50, as opposed to the previous recommendation of age 40, because
A) breast tissue is more sensitive to radiation damage before menopause than after.
B) the cost of the screening is not covered by insurance until after a woman reaches menopause.
C) most forms of breast cancer do not develop until later in life.
D) the method of screening is more accurate in older women than younger.
E) delaying the screening ensures that younger, more at-risk women, are able to schedule the preventive tests.
A
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A patient with diabetes is experiencing creamy patches on his tongue and mucous membranes. Cultures are performed, and yeast is recovered. His diagnosis is most likely:
a. paronychia. b. onychomycosis. c. candidemia. d. thrush.
Which of type of information is NOT communicated by proprioceptors?
A. muscle temperature B. limb movement C. muscle position D. muscle contraction E. muscle stretch
Which of the groups is a functional group?
A. -OH B. C=O C. COOH D. NH2 E SH
Why are the components of the electron transport chain embedded in the inner mitochondrial membrane rather than floating freely in the cytoplasm of mitochondrial matrix?
A. because electrons cannot float in the matrix. B. to separate the ATP from the ADP. C. because NADH cannot localize to the mitochondrial matrix. D. to generate and maintain the proton gradient essential for ATP production.