Unverified88% confidenceDecision RuleTime unknown
血清25-OH-D正常者日常维持选400-1000IU；检测显示缺乏（＜20ng/mL）需在医生指导下短期用2000-5000IU纠正，达标后降回维持量，不建议长期自行服用5000IU
1
Sources
88%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified普通成人日常维持推荐1000-2000IU/天，此剂量可满足绝大多数人将血清25-OH-D维持在30ng/mL以上；仅在明确缺乏（血清＜20ng/mL）时才短期使用5000IU纠正93% similarUnverified血清25-OH-D＜20ng/ml（缺乏）时常需2000-5000IU/日纠正数月，充足维持一般1000-2000IU/日即可；无检测数据时成人日常维持选1000-2000IU较稳妥，不建议长期盲目5000IU92% similarUnverified日常维持剂量1000-2000IU/天适合大多数成人；已确诊缺乏（血25(OH)D<20ng/ml）可短期用5000IU纠正，但5000IU不建议长期无监测服用92% similarUnverified血清25-OH-D＜20ng/ml（缺乏）建议2000-5000IU/天短期纠正后复查，20-30ng/ml（不足）用1000-2000IU/天维持，≥30ng/ml充足者400-800IU/天日常预防即可91% similarUnverified血清25-OH-D＜20ng/mL（缺乏）时可选2000-5000IU/日进行纠正，达标后（30-50ng/mL）以1000-2000IU/日维持；单纯预防性补充400-1000IU/日即可91% similar
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