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Final

Chapter 7

QuestionAnswer
What is the proper blood-to-additive ratio for a light-tube collected for a coagulation test? 9:1
Which needle gauge has the largest lumen? 18
The tests performed in the following department are typically collected in a tube with a light-blue stopper. Coagulation
A tube with a green stopper normally contains Heparin
The purpose of an antiglycolytic agent is to preserve glucose.
The solution normally used to clean the site before routine venipuncture is 70% isopropanol.
When nitrile or vinyl strap tourniquets become soiled with blood, it is best to throw them away.
What is the most important factor in choosing which gauge needle to use for venipuncture? Size and condition of the vein
Which additive is usually present in a tube with a lavender stopper? EDTA
Glass particles present in serum separator tubes enhance clotting.
Heparin prevents blood from clotting by inhibiting thrombin.
Which of the following is classified as a disinfectant? Sodium hypochlorite
The slanted tip of the needle that enters the vein is called the bevel.
According to CLSI standards, which of the tubes listed below is filled last when using a syringe? EDTA
When using a winged infusion blood collection set, if the first tube is an additive tube, it is important to collect a few milliliters of blood into a nonadditive tube first to maintain proper blood-to-additive ratio.
A phlebotomist collects a light-blue-top, lavender-top, and gray-top tube from an inpatient. Respectively, which of the following additives do the tubes most likely contain? Citrate, EDTA, sodium fluoride
A rapid serum tube contains thrombin.
The tube additive that is responsible for the most carryover problems is ethylenediaminetetraacetic acid.
Which of the following substances is a biocide? Hydrogen peroxide Isopropyl alcohol Povidone iodine
You must collect a routine hematology test, a coagulation test, and a stat chemistry test. Which of the following are the tubes you would most likely use, listed in the correct order of draw? Light-blue-top, green-top, purple-top.
An inert synthetic substance that forms a physical barrier between the cells and serum or plasma of a specimen is known as Thixotropic gel
A type of needle used to collect blood from small or difficult veins is known as a Butterfly, winged infusion set
A substance used to kill bacteria on surfaces and instruments is known as a Disinfectant
Substances that provide increased surface for platelet activation are known as Clot activators
Evacuated tubes fill with blood automatically because a __________ exists in the tube. Vaccume
Citrate prevents clotting by Binding calcium
The ______-gauge multisample needle is considered the standard needle for routine venipuncture. 21
A needle that does not have a safety feature must be used with a HOLDER that has a SAFTY FEATURE TRUE
The BD tan stopper tube contains EDTA and is used for ___________ tests. Lead
The safest way to transfer blood from a syringe is to use a Transfer device
Created by: cbillips13
 

 



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