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
deliver blood more quickly but are more damaging to the tissue and may collapse the vein.
Large needles
are less damaging to tissue, but collection is slower, and the blood cells may be hemolyzed as they pass through the narrower opening.
Small needles
: The needle attaches to the collecting tube or syringe at the ___
HUB
MULTISAMPLE NEEDLES:
Multisample/ collections uses ____ needle
Double-ended needle
MULTISAMPLE NEEDLES:
While one tip of the needle penetrates the patient’s skin, the second tip
during blood collection pierces the ____ of an evacuated collection tube.
rubber cap
MULTISAMPLE NEEDLES:
The most common double-ended needle is the ______ which has a _____ ______ _____ that covers the second tip when it is not inserted into a tube.
multisample needle/ retractable rubber sleeve
remains in place in the patient’s vein while one tube is replaced with another
multisample needle
The ____ keeps blood from leaking onto or into the adapter or tube holder while you are changing tubes.
sleeve
SAFETY SYRINGES AND SAFETY SYRINGE NEEDLES:
sometimes useful for patients with fragile or small veins, when the vacuum of the collection tube is likely to collapse the vein.
Syringe
provides a controlled, gentle vacuum for fragile veins
syringe
A _______ (also called a hypodermic needle) fits onto the syringe barrel.
syringe needle
have an advantage over multisample needles in that blood appears in the hub when the vein has been entered.
Syringe needles
A ___ ____ ____ must be used with the syringe needle whenever drawing with a syringe.
safety transfer device
The winged infusion set, also called a winged collection set or butterfly, is used for venipuncture on _____ , such as those in the hand, and in elderly or pediatric patients.
small veins
allows you great flexibility in placing and manipulating the needle.
butterfly needle
Most butterfly needles are now designed to be used with an evacuated tube system. Those that are not can be fitted using a ___ adapter.
Luer
A recent study by
the Centers for Disease Control and Prevention (CDC) estimated that approximately ____ accidental needle sticks occur per day nationwide.
1000
The ____________________ act specified types of “engineering controls” mentioned in OSHA’s Bloodborne Pathogens Standard to increase needle safety.
Needlestick Safety and Prevention Act
______ needles have a plastic sheath that snaps shut over the needle.
Self-capping
The _______________ act specified types of “engineering controls” mentioned in OSHA’s Bloodborne Pathogens Standard to increase needle safety.
Needlestick Safety and Prevention Act
cause the needle to retract into the syringe, tube holder, or other device.
Retractable technologies
The ______________ (winged collection set) manufactured by Becton, Dickinson and Company (BD) (Franklin Lakes, N.J.) has a button to push to retract the needle automatically from the vein and into the body of the needle device.
This in-vein activation reduces the risk of needle sticks.
Vacutainer Push Button Blood Collection Set
For most collections, you will use a multisample needle and an evacuated collection tube. To ensure a firm, stable connection between these two essential parts, a _____________ is used
needle adapter (also called a tube holder)
is a translucent plastic cylinder. One end has a small opening that accepts the multisample needle. The other end has a wide opening that accepts the collection tube.
needle adapter
have a tube advancement mark indicating how far the tube can be pushed in without losing the vacuum.
Adapters
Like a needle, an adapter is used only once, and it is discarded while still ______ to the needle. According to OSHA regulations, reuse of an adapter is prohibited because of the risk of exposure to blood that may occur.
attached
