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The range for normal depends on the country and the lab. Quest offers a range of 30-100ng/mL however the specific regimen you may read about here and on other platforms for CH prophylaxis targets a vitamin D blood level of 80-100ng/mL for episodic, the upper limit for Quests range for normal and slightly above that for chronic CH. Enjoy the watch and hopefully a pain free holidays ahead.1 point
