Please be advised that BD has issued a recall on EDTA (LT top) microtainer tubes with lot numbers 8101695, 8128575, 8129645, 8127770, 8129642, and 8290928. If you have these tubes please do not use them. Email us at for a replacement.

More information from the manufacturer available at:

Thank you,

Urine containers

The dark blue top collection containers pictured here do not seal well and are frequently received leaking. We would like to encourage everyone to please submit urine in the orange top containers which we provide, or alternatively a non-additive tube. Thank you!



LabBrief is our bimonthly electronic newsletter intended to keep you up to date on our services and goings-on at the lab. If you do not currently receive LabBrief and would like to be added to our mailing list, please email or call us with your preferred email address. You can unsubscribe at any time.

New Website Launch

Welcome to TNVD’S new website! We thank you for your patience as we work out any glitches that might arise during the transition. We will be updating site regularly- please check back often for the most up-to-date information and pricing.

***You will not be able to access parts of the website under password protection on Sunday, March 17, while password setting are being configured.***

Important notice regarding send outs

Most send out tests are destined for testing facilities in the U.S. Samples are consolidated along with appropriate documentation and shipment typically occurs on Monday and Wednesday of each week. In order for documentation to be completed, send out requests and/or submissions need to be received by 4pm the day before, which would be Sunday and Tuesday. If you have any questions, please give us a call. Thank you for your cooperation.