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AHA3 Ch 7
BldCollectionEquip, Additives&OrderofDraw
| Question | Answer |
|---|---|
| What is the proper blood-to-additive ratio for a light-tube collected for a coagulation test? | 9:1 |
| Of 18, 20, 21, & 22, which needle gauge has the largest lumen? | 18 |
| The tests performed in the this department are typically collected in a tube with a light-blue stopper | Coagulation |
| A tube with a green stopper normally contains | oxalate |
| What is purpose of an antiglycolytic agent? | to preserve glucose |
| What is the solution normally used to clean the site before routine venipuncture? | 70% isopropanol |
| When nitrile or vinyl strap tourniquets become soiled with blood, it is best to do what? | 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 do what? | enhance clotting |
| What is classified as a disinfectant? | .Sodium hypochlorite |
| What is the slanted tip of the needle that enters the vein called ? | the bevel |
| According to CLSI standards, which tube 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 do what? | 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? | Sodium Citrate, EDTA, sodium fluoride |
| What does a rapid serum tube contain? | thrombin |
| The tube additive that is responsible for the most carryover problems is what? | ethylenediaminetetraacetic acid (EDTA) |
| Name a biocide | Hydrogen peroxide |
| Name a biocide | Isopropyl alcohol |
| Name a biocide | Povidone iodine |
| If you need to collect a routine hematology test, a coagulation test, and a stat chemistry test, what color top tubes you would most likely use, listed in the correct order of draw? | Light-blue-top, green-top, purple-top |
| What is an inert synthetic substance that forms a physical barrier between the cells and serum or plasma of a specimen? | thixotropic gel |
| What is a type of needle used to collect blood from small or difficult veins? | Butterfly or winged infusion set |
| A substance used to kill bacteria on surfaces and instruments is known as what? | a disinfectant |
| Substances that provide increased surface for platelet activation are known as what? | clot activators |
| Why will evacuated tubes fill with blood automatically? | because a vacuum exists in the tube |
| Citrate prevents clotting by what means? | binding calcium |
| What 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 what | a holder that has a safety feature |
| The BD tan stopper tube contains what? | EDTA |
| The BD tan stopper tube is used to collect what analyte? | lead |
| What is the safest way to transfer blood from a syringe? | use a syringe transfer device |
Created by:
DeniseRupert
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