The invention discloses
a DNA (
Desoxyribonucleic Acid)
specimen collection and
quality control method for
fetus chromosome aneuploid detection. The method comprises the following steps: I, performingspecimen collection, namely collecting 5.0mL of
peripheral blood of a pregnant woman by using a
blood collection tube I, and after collection is completed, slightly inverting the
blood collection tube, placing the
blood collection tube in a refrigerator in time, collecting 10.0mL of
peripheral blood of the pregnant woman by using a
blood collection tube II, after collection is completed, slightlyinverting the
blood collection tube, and preserving at a normal temperature; II, pre-cooling a
low speed centrifuge, putting into the
blood collection tube II, centrifuging for minutes, sucking supernate
blood plasma, transferring into an EP (Eppendorf) tube on an ice box, and marking with corresponding sample numbers; III, pre-cooling a high speed
centrifuge till a temperature is stabilized, putting into the EP tube, centrifuging, sucking the supernate
blood plasma on the ice box with a gun head pointing to non-leukocyte
precipitation part, sub-packaging into the EP tube on the ice box, transferring into the
blood plasma, marking sample numbers and blood
plasma tube numbers, and preserving in the refrigerator; IV, performing
quality control and treatment on the sample preserved in the step III. The method is definite in standard, good in practice operation effect and efficient and rigorous.