Stability of dried blood spots on paper, as used in screening neonates for hypothyroidism

Davis, G.; Poholek, R.

Clinical Chemistry 25(1): 24-25

1979


ISSN/ISBN: 0009-9147
PMID: 761374
Document Number: 143778
Thyroxine values for dried blood spots on paper may be low if the paper has been long exposed to high ambient temperature and (or) humidity and (or) to sunlight. Low values are associated with poor extractability of the red color from the spots. We recommend appropriate precautions for such samples.

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