What to do with Specimens collected on a Friday

The PNRR laboratory is not open for business on Saturday or Sunday; therefore, we ask that no samples be shipped on a Friday. We cannot guarantee the conditions in which the samples will be held by the shipping courier over the weekend. It is important to have plans in place for each type of sample to be held over the weekend prior to shipping. Please refer to the table below for how to handle samples drawn on a Friday.

When possible, please only ship frozen samples on Monday-Wednesday. There is always the potential for an unexpected shipping courier delay and by shipping Monday through Wednesday there should be enough time to receive the samples before the weekend.

Sample Type Collection Tube Primary Shipment Vessel Product Shipment Method Friday Draw Instructions
Whole Blood EDTA EDTA Tube DNA Ambient

Do NOT refrigerate. Please keep sample at room temperature until the specimen can be shipped via next day delivery methods the following Monday.

Plasma EDTA Polypropylene Aliquot Tubes Plasma Frozen

Plasma must be processed and aliquoted locally the day of collection. Once aliquoted, samples are stored upright in a -80°C freezer before shipment.

Buffy Coat EDTA Polypropylene Aliquot Tubes DNA Frozen

Buffy Coat aliquots must be processed and aliquoted locally the day of collection. Once aliquoted, the sample must then be transferred into a -80°C freezer until shipment. The aliquot may then be packed with dry ice pellets and shipped frozen as the study SOP dictates.

Serum SST Polypropylene Aliquot Tubes Serum Frozen

Serum must be processed and aliquoted locally the day of collection. Once aliquoted, samples must then be transferred into a -80°C freezer. The aliquots may then be packed with dry ice pellets and shipped frozen as the study SOP dictates.