Standardized Transfer Tube
In early 1997, ARUP adopted a 4-mL, screw-cap standardized transfer tube. This tube is provided to all clients for specimen submission. This tube was adopted by ARUP for a number of reasons:
- The tube has been evaluated by ARUP and is not known to cause analytical interference with the associated assays.
- The tube fits into every analyzer in the Automated Core Laboratory, as well as into many of ARUP's other laboratory analyzers and pipetting stations, thus eliminating the need for analyzer-specific tubes or cups.
- The tube fits into the Standardized Transport Carriers (STCs) in ARUP's Automated Track System.
- The tube allowed ARUP to eliminate its 90-cc urine bottle for most urine tests.
- The specimen in a standardized transfer tube can be thawed in 30 to40 minutes, while typical frozen urine samples require 5 to 6 hours to thaw when in 90-cc bottles, allowing ARUP to provide faster turnaround times for clients.
- The standardized transfer tube reduces handling, since there is no longer the need to pour aliquots or transfers, thus saving time and reducing errors.
- This tube meets the requirements of the NCCLS Approved Level Standard AUTO1-A, Laboratory Automation: Specimen Container/Specimen Carrier.
- The tube meets the compliance requirements mandated by the Department of Transportation (DOT) and International Air Transport Association (IATA).
ARUP also offers amber and metal-free versions of this tube for most light-sensitive or trace element testing... Only a few tests still require specimens to be submitted in foil-wrapped tubes. Again, this means that the amber tubes can be more easily labeled and submitted by clients, and can be more quickly and easily handled by ARUP upon arrival. Moreover, the tube can then be transported in ARUP's Automated Track System, unlike foil-wrapped tubes.
The ARUP Laboratory Test Directory contains instructions on the use of the standard transport tubes and specifies each test that requires either that tube or the amber tube.