Goldenrod Lancets come in three point lengths for various size animals and blood volumes required.  Choose The Proper Lancet Point Length Corresponding To The Age Of The Mouse And The Volume Of Blood Needed.  

4mm - 2 to 6 weeks
5mm - 2 to 6 months
5.5mm - over 6 months
 5mm point length is recommended for use on rat's saphenous vein.

With the GoldenRod Animal Lancet you can now take multiple blood samples from small animals in the same day and never lose or hurt an animal.  Speed up the blood collecting process with this specially designed and sterile, disposable blood lancet that is inexpensive, easy, and fast to use in three point lengths: 4mm, 5mm, 5.5mm for various size animals and volumes required.

Unanesthetized rats can be manually restrained for access to the saphenous vessel.
One rear leg is isolated and a scalpel blade used to bluntly remove hair over the vessel. A small amount of Puralube® ointment is applied topically prior to pricking the vein with the MEDIpoint’s lancet (Fig 1).  The Puralube ointment allows the blood drop to remain localized and away from the skin and hair on the leg (Fig 2).  Approximately 4 - 5 drops of whole blood (~100 µl) can then be directly collected into a collection tube, prior to sample analysis (Fig 3).   Blood flow can be stopped at any time by applying a compress to the site for a few moments.

We thank 2006 AALAS Poster (P8) "Establishment of Blood Analyte Intervals for Laboratory Mice and Rats Using the i-STAT ®  Portable Clinical Analyzer " and it’s authors Stender RN, Engler WJP, Braun TM, and Hankenson FC for the information and pictures on this page.