Instructions for Use of the MDR1 Test Kit*
NOTE: It is IMPORTANT THAT FOOD PARTICLES ARE NOT
INCLUDED with the cheek cells sampled from the mouth. Obtain samples
from dogs at least 30 minutes after eating to avoid contamination with food
Sample Collection Instructions in Video
Label the Brushes
Use the two brushes provided for each dog sampled. Label the paper backing of
each brush package with the dog's name, and your first and last name (or name of
the Veterinary Hospital), using a pen or permanent marker.
Taking the Samples
Remove the brush from
the package. Use the two
brushes provided for
each dog sampled.
- Hold the brush handle between your
thumb and forefinger. Roll the inner
surface of the upper lip to the outside
by inserting a finger in the corner of
the mouth and pulling the lip upwards.
- Place the bristles of the brush on
the inner surface of the cheek.
- Release the lip, leaving the brush
inside the mouth and steady the dog's
muzzle by circling the nose with one
hand, gently keeping the dog's mouth
Move the brush back and forth for a
short distance in the space between the
inner cheek and gum, twirling the brush
around with your thumb and forefinger as
it is moved back and forth. Do not push
the tip of the brush into the soft
tissues of the mouth. The side bristles
will be brushing on the surface of the
- Continue for 20-30 seconds (about 20
to 30 back and forth motions) using the
same pressure you would use to brush
Repeat sampling on the other side of the
mouth using the remaining brush. If
multiple dogs are being sampled wash
your hands between dog samplings.
Tip: A few swipes will not get
enough cheek cells to run the test! Be
sure to brush long enough.
Include a completed
with the samples.
* PCR for this service is performed pursuant to an agreement with Roche
Molecular Systems, Inc.
US patents 6,790,621 and 7,393,643; Australian patent 2002249946; European