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1151.e6 Phlebotomy

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A B

PHLEBOTOMY The jugular vein is the preferred site for collection of blood in dogs or cats, especially if PHLEBOTOMY The medial saphenous vein is
multiple different tube types or volumes larger than 6 mL are required. With the patient’s nose pointed up, the an alternative to the jugular vein for collection of
thumb is laid across the thoracic inlet to cause the vein to engorge (A). After each Vacutainer tube is full, the small-volume diagnostic blood samples from cats.
holder is stabilized while the tube is removed (B). As many additional tubes can be placed on the same needle
as are required without worry of sample clotting or hemolysis.
Alternatives and Their Relative
Merits
• A central line placed under sedation facilitates
serial blood draws without multiple sticks
for hospitalized patients. It is more expensive
and can be technically challenging.
• Small amounts of blood can be collected at
the time of insertion of peripheral catheters.
• A lancet or needle can be used to collect a
drop of blood from ears, paw pads, or elbows
for use with a glucometer.
Pearls
• With experience and a cooperative patient,
it is possible for one person to collect blood
alone.
• Canned cheese can make a good distraction
during venipuncture. The assistant can allow
the pet to sniff or lick a small amount of
cheese during the blood draw.
• With cats, less is more when it comes to
restraint. They often cooperate more with
minimal restraint.
AUTHOR: Savannah Smith, RVT
PHLEBOTOMY The lateral saphenous vein is an alternative to the jugular vein for collection of diagnostic EDITORS: Leah A. Cohn, DVM, PhD, DACVIM; Mark S.
blood samples from dogs. Thompson, DVM, DABVP

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