VITAMIN D 25-HYDROXY
. This test does not include a separate vitamin D2 and D3 level analysis.
. There can be seasonal variation in 25 (OH) vitamin D levels, with values 40-50% lower in winter than in summer. It is also influenced by sunlight, latitude, skin pigmentation, sunscreen use, and hepatic function.
.
25 (OH) vitamin D levels can vary with age.
25 (OH) vitamin D level is increased during pregnancy.
. This test does not include a separate vitamin D2 and D3 level analysis.
. There can be seasonal variation in 25 (OH) vitamin D levels, with values 40-50% lower in winter than in summer. It is also influenced by sunlight, latitude, skin pigmentation, sunscreen use, and hepatic function.
.
25 (OH) vitamin D levels can vary with age.
25 (OH) vitamin D level is increased during pregnancy.
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