Unverified83% confidenceSolutionTime unknown
先测血清25-OH-D确定基线：＜20ng/mL为缺乏需5000IU纠正，20-30ng/mL为不足用2000IU，≥30ng/mL用1000IU维持；补充2-3个月后复检调整剂量
1
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83%
Confidence
Long-term
Relevance
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Unverified缺乏纠正标准路径：先做血清25(OH)D检测→<20ng/ml缺乏用较高剂量（如5000IU）纠正数周→复检达标（30-50ng/ml）后转为1000-2000IU维持剂量92% 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% similarUnverified选购规则：先验血确认25(OH)D水平，低于20ng/mL选5000IU纠正型短期补充，达到30-50ng/mL后应降至1000-2000IU维持；不建议盲目长期服用高剂量91% similarUnverified从缺乏到充足的标准补充路径：先查血清25-OH-D→＜20ng/ml按缺乏方案（2000-5000IU数月）→复查达30-50ng/ml后转维持量（1000-2000IU）→长期高剂量者加K2并定期复查90% similarUnverified血清25-OH-D＜20ng/mL（缺乏）建议短期补充2000-5000IU/天纠正，达标后维持1000-2000IU/天；20-30ng/mL（不足）用1000-2000IU/天即可；已达30-50ng/mL理想区间用400-1000IU/天维持90% similar
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