Needles Flashcards
In routine venipuncture, a ____ inserted into a vein allows blood to flow out into an evacuated collection tube or syringe.
needle
All _____ used for phlebotomy are sterile, disposable, and used only once.
needles
Inspect each needle package before opening it to be sure that the ____ has not been broken. If it has, discard it.
seal
inspect the needle itself to be sure that it has no ______ _____. The needle should be straight, sharp, beveled, and free of nicks or burrs. Discard any defective needle.
manufacturing defects
: A sharp needle provides smooth entry into the skin with a minimum of pain.
POINT
eases the shaft into the skin and prevents the needle from coring out a plug of tissue.
bevel, or angle
differ in both length and gauge.
Shafts
The needles used for routine venipuncture range from ____ for “butterflies” to ______ long for standard needles.
¾ inches - 1 to 1½ inches
Factors that influence the choice of length include _____ and ______, and the experience and preference of the phlebotomist.
location and depth of the vein
describes the diameter of the needle’s lumen
gauge
the hollow tube within the shaft.
Lumen
The smaller the gauge number, the larger the
lumen diameter
is not a matter of personal preference; it depends on the type of collection and the condition of the patient.
choice of gauge
The largest-diameter needles routinely used in phlebotomy are ____ to ____
21 to 22 gauge
Blood bank uses _____ to _____ needles to collect blood from donors for transfusions.
16- to 18-gauge
The smallest needles commonly used are ___ gauge, for collection from small, fragile veins.
23
A typical gauge for routine adult collection is ___ gauge.
21