Frozen or fresh? new study tests vitamin d lab accuracy
Knowledge-focused
ENROLLING_BY_INVITATION
This study looks at whether storing blood samples (frozen or at different temperatures) changes the accuracy of a vitamin D test called the ALPCO 25(OH) Vitamin D CLIA Kit. Researchers will compare results from fresh blood with those from stored samples in 80 healthy adults. The …
Sponsor: American Laboratory Products Company • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:29 UTC