substances used to prevent sepsis, only reduce the amount of microbes, but does not kill them

chemical substances used to remove or kill microorganisms

A device applied or tied around the arm to restrict blood flow

A number that gives an indication of the size of the lumen of the needle

ETS or multi sample needles

needles that are threaded in the middle and have a point at both ends, screw into tube holders and allow for multiple tubes to be collected at one time

clear plastic cylinder used to hold tubes

tubes used to collect blood for specimen testing

Syringe transfer device

allows safe transfer of blood from syringe to tube without removing the tube stopper

must be changed every procedure, powdered and latex gloves are not approved

Antiseptics are used on

humans, most common is isopropyl alcohol

Disinfectants are used to

kill or remove microbes, not safe for skin, used to clean instruments and surfaces, bleach is most common

used following VP, cotton balls not used because they can tear off platelet plugs when removed

Sharps containers need to be

identified with a biohazard symbol, be rigid, puncture resistant, leakproof and disposable with a locking lid

Tourniquets must be applied

tight enough to restrict venous flow, but not arterial flow, can be disposable, should

Bariatric tourniquets

are to be used for obese patients

ETS (evacuated tube systems) are the

preferred collection system of the CLSI

is created in the tube during manufacture, can be lost if tube is expired or dropped

Common anticoagulants (ECHO)

EDTA, Citrates, Heparin, Oxalates

EDTA ethylene/diamine/tetra/acetic acid must be

mixed immediately to prevent platelet clumping and micro clot formation

Antiglycolytic agents

prevent the breakdown of glucose by the blood cells, if not prevented, glucose can decrease at a rate of 10 mg/dl

is present to form a barrier between serum or plasma following centrifugation

Carry over or cross contamination

occurs when an additive is transferred by the needle to subsequent tubes, reason for order of draw

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Ch 7 Study Guide

Blood Collection Equipment, Additives, Order of Draw

Term	Definition
Antiseptics	substances used to prevent sepsis, only reduce the amount of microbes, but does not kill them
Disinfectants	chemical substances used to remove or kill microorganisms
Tourniquet	A device applied or tied around the arm to restrict blood flow
Gauge	A number that gives an indication of the size of the lumen of the needle
ETS or multi sample needles	needles that are threaded in the middle and have a point at both ends, screw into tube holders and allow for multiple tubes to be collected at one time
Tube holder	clear plastic cylinder used to hold tubes
Evacuated tubes	tubes used to collect blood for specimen testing
Syringe transfer device	allows safe transfer of blood from syringe to tube without removing the tube stopper
Winged infusion set	butterfly needle
Gloves	must be changed every procedure, powdered and latex gloves are not approved
Antiseptics are used on	humans, most common is isopropyl alcohol
Disinfectants are used to	kill or remove microbes, not safe for skin, used to clean instruments and surfaces, bleach is most common
Gauze	used following VP, cotton balls not used because they can tear off platelet plugs when removed
Do not put bandages on children younger than	2 years of age
Sharps containers need to be	identified with a biohazard symbol, be rigid, puncture resistant, leakproof and disposable with a locking lid
Tourniquets must be applied	tight enough to restrict venous flow, but not arterial flow, can be disposable, should
Bariatric tourniquets	are to be used for obese patients
Bevel	pierces skin
Lumen	internal gauge
Gauge	indicates lumen
21-gauge	are most commonly used
Every needle must have a	safety feature
ETS (evacuated tube systems) are the	preferred collection system of the CLSI
Vacuum	is created in the tube during manufacture, can be lost if tube is expired or dropped
Common anticoagulants (ECHO)	EDTA, Citrates, Heparin, Oxalates
EDTA ethylene/diamine/tetra/acetic acid must be	mixed immediately to prevent platelet clumping and micro clot formation
Heparin	inhibits thrombin
Antiglycolytic agents	prevent the breakdown of glucose by the blood cells, if not prevented, glucose can decrease at a rate of 10 mg/dl
Thixotropic gel	is present to form a barrier between serum or plasma following centrifugation
Carry over or cross contamination	occurs when an additive is transferred by the needle to subsequent tubes, reason for order of draw

Created by: user-2043425

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