Custom Collection Device FAQs

What tube types are available?

You may choose from different sizes of vacuum-draw tubes, screw-cap, cryo-vials, or essentially any other vessel you need. The vial is up to you.

What type of plastic is used to produce Prolytix’s vacuum blood collection tubes? 

Prolytix’s vacuum tubes are made from polyethylene terephthalate (PET). This special formulation is extremely strong, dimensionally stable, and resistant to chemicals and breakage. PET is the standard in the industry.

Are your tubes for clinical use? 

No. All tubes are produced as a research use only product. While they can be used in your clinical research studies, they cannot be used for patient diagnosis and treatment. Prolytix collection tubes are NOT FDA approved.

Can you manufacture tubes with a serum separator gel?

Unfortunately, at this time we do not offer that option.

Can you spray coat the interior of the tube?

No. At this time we only offer liquid or lyophilized contents.

How are the tubes packaged?

Most tubes are packaged 100 tubes/box or bag.

Are your tubes endotoxin free?

No, we do not claim that any of the tubes are endotoxin free.

What are the expiration dates of your custom tubes? 

Because these are custom-made to your specifications, we are not able to provide an expiration date. You may, however, commission a stability study to determine this date OR ask us to print a date that you have decided internally.

How should expired/unused tubes be disposed of?

Local trash collectors should be consulted to see what the proper method of disposal is for unused, expired blood collection products.

Can you sterilize your tubes?

No, we cannot. All our tubes are nonsterile, for research use only. You have the option of contacting a third-party sterilization company of your choice for this service. However, a validation process may be necessary, which requires multiple lots of tubes and may be a considerable expense. If you choose to pursue sterilization, we can ship directly to the sterilization company you choose.

How long will it take for you to manufacture my tubes?

We operate on a first-come, first-served system. For most orders there is a 2-4-week turnaround time, which can be shorter or longer depending on the queue and tube complexity.

At what temperature should the tubes be stored prior to use?

We generally recommend storing our tubes at 4° C, depending on the contents.

What is the proper way to perform phlebotomy with your vacuum tubes?

Because our tubes are nonsterile, we require that all phlebotomy be performed with a winged collection set to prevent backflush.

What is the proper order of draw for the blood collection tubes? 

When using a winged collection set for venipuncture and a coagulation tube is the first tube drawn (citrate for example), a discard tube should be drawn first. While you don’t need to completely fill the discard tube you do want to completely eliminate the dead space in the tubing. This will ensure proper blood-to-additive ratio when drawing into the “live” use tube. With regard to drawing into multiple tube types, the recommendation is to draw for the least sensitive analytes first, and the most sensitive last. For example if you had a serum tube, citrate tube, and protease inhibitor tube the first tube would be the serum tube (because you are already allowing for the natural generation of pro-coagulant enzymes). Once the serum tube has been drawn, and has effectively flushed the needle/catheter, you would draw the citrate and then the tube containing protease inhibitors last.

How do I process the SCAT-1, 2, or 875B tubes? 

Centrifuge tubes at 1,500g for 15 to 20 minutes for a total of 22,500 to 30,000 g*minutes. Immediately after tubes are centrifuged, carefully place them upright at room temperature in preparation for pooling and aliquoting.

What are the proper number of inversions for the tubes? 

This will vary depending on the component, and should be determined by your lab.

How do I obtain package inserts for tubes that I have purchased previously?

Please email us at info@goprolytix.com  or call +1 (802) 878-1777.

What are the proper number of inversions for the tubes? 

This will vary depending on the component, and should be determined by your lab.

How do I obtain package inserts for tubes that I have purchased previously?

Please email us at info@goprolytix.com  or call +1 (802) 878-1777.