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【单选题】

Sleep Problems Plague the Older Set
Older Americans often have difficulty getting a good night's rest.It's a huge quality-of-life problem, experts say, because contrary to popular belief, seniors require about the same amount of sleep as younger s.
'Sleep problems and sleep disorders are not an inherent (固有的) part of aging,' said Dr.Harrison G.Bloom, an associate clinical professor of geriatrics (老年病学) and medicine at the Mount Sinai School of Medicine in New York City.'It's pretty much of a myth that older people need less sleep than younger people.'
Yet, in a study published recently in The American Journal of Medicine, researchers found that more than half of older Americans have problems getting the sleep they need.
Older people tend to have 'sleep fragmentation,' meaning they wake up more often during the night, said study author Dr.Julie Gammack, an assistant professor of medicine in the Division of Geriatric Medicine at St.Louis University.
They also seem to get less 'REM' sleep, the type of sleep during which rapid eye movement occurs, Bloom added.
It's unclear what role these naturally occurring changes in sleep patterns have on a person's quality of life, Bloom said 'What is important, though, is that older people often have actual sleep disorders and problems with sleep,' he said.
And, experts say, there is usually more than one cause.
'Sleep trouble in older s is typically associated with acute and chronic illnesses, including specific sleep disorders like sleep apnea (呼吸暂停) and restless leg syndrome that appear with greater frequency in older populations,' said Michael V.Vitiello, a professor of psychiatry and behavioral sciences and associate director of the University of Washington's Northwest Geriatric Education Center.
Taking multiple medications, as many older people do, can also lead to fatigue and 'hypersomnia,' or being tired all the time, Bloom added.
Another big problem, he noted, is depression and anxiety.'Those are very commonly associated with sleep problems.'
Despite the prevalence (流行) of sleep difficulties in older s, many patients aren't getting the help they need As a result, problems like insomnia (失眠), restless leg syndrome and sleep apnea are underdiagnosed and undertreated, Bloom said.
Sleep problems can seriously affect one's quality of life.

A.
Right
B.
Wrong
C.
Not mentioned
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【单选题】睡眠呼吸暂停是指

A.
睡眠时口和鼻气流停止达15秒以上
B.
睡眠时口和鼻气流停止达10秒以上
C.
睡眠时口和鼻气流停止达5秒以上
D.
睡眠时口和鼻气流停止达20秒以上

【单选题】患者,女,45岁。失眠2年,经常多梦少寐,入睡迟,易惊醒,平常遇事惊怕,多疑善感,气短头晕,舌淡,脉弦细。治疗除取主穴外,还应加

A.
心俞、厥阴俞、脾俞
B.
心俞、肾俞、太溪、足三里
C.
心俞、胆俞、大陵、丘墟
D.
肝俞、间使、太冲
E.
脾俞、胃俞、足三里

【单选题】肝郁化火型失眠的最佳治疗方剂宜用()

A.
丹栀逍遥散
B.
柴胡疏肝散
C.
龙胆泻肝汤
D.
滋水清肝饮
E.
一贯煎

【单选题】人过度通气后可发生呼吸暂停,其主要原因是

A.
呼吸肌过度疲劳
B.
血氧分压过高
C.
血液pH值过低
D.
血中二氧化碳分压太低

【单选题】阻塞性睡眠呼吸暂停综合征的治疗方案中,选用适合的正颌外科手术可有效地解除或缓解症状,可选用

A.
全上颌骨水平向骨切开术
B.
经口内下颌升支斜行骨切开术
C.
经口内下颌升支矢状骨劈开术
D.
上颌前份节段性骨切开术
E.
下颌前部根尖下骨切开术

【单选题】慢性缺氧者,吸入纯氧易引起呼吸暂停的原因是

A.
吸入纯氧后二氧化碳浓度下降,导致二氧化碳对呼吸的兴奋作用减弱
B.
高浓度氧对呼吸中枢有抑制作用
C.
低氧可通过外周化学感受器反射性兴奋呼吸中枢,当吸入纯氧时使此反射减弱
D.
高浓度氧使外周化学感受器对氢离子的敏感性降低
E.
高浓度氧使外周化学感受器对氢离子的敏感性增加