When we need a blood sample from a patient that is difficult to restrain, we have good results by briefly numbing the skin
before venipuncture. If we have 20 to 30 minutes to allow the medication to work, we inject 0.1 ml of 2% lidocaine near the
vein, and note the site with a marker. Or if the fur is clipped, we apply topical anesthetic cream (EMLA). But if we are in
a hurry, a quick and effective method of numbing the skin is wrapping an ice cube in a damp paper towel and holding it against
the skin for about two minutes.
Dr. Bill B. Moore
Boca Raton, Fla.