Information on collection, storage, and volume
Preferred fixed products of conception (POC), formalin-fixed paraffin-embedded (FFPE) tissue
One paraffin block or ten 10-micron thick section slides
Extracted DNA from received specimen must yield at least 10 ul at a concentration of 8 ng/ul.
Paraffin block transport pouch
No fetal visualized on pathology report; only a small area is identified on fixed sample as fetal, and is less than 50% of sample
Specimen should be fixed in 10% neutral-buffered formalin or formaldehyde.