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PE Ch 7
Phlebotomy Essentials Ch 7
| Question | Answer |
|---|---|
| ACD | Additive used for immunohematology tests such as DNA and HLA typing |
| Additive | Substance added to a blood collection tube |
| Anticoagulant | Substance that prevents blood from clotting |
| Antiglycolytic agenct | Additive that prevents the breakdown of glucose by the cells |
| Antiseptics | Substances used for skin cleaning that inhibit the growth of bacteria |
| Bevel | Point of needle that is cut on a slant for ease of skin entry |
| Butterfly needle | Winged infusion blood collection set |
| Clot activator | Coagulation-enhancing substance, such as silica |
| Disinfectant | Solutions used to kill microorganisms on surfaces and instruments |
| EDTA | Anticoagulant that preserves cell shape and structure and inhibits platelet clumping |
| ETS | Abbreviation for the collection system typically used for routine venipuncture |
| Evacuated tube | Premeasured vaccum tube that is color-coded based on its additivie |
| Gauge | Number that is related to the diameter of the needle lumen |
| Glycolysis | Breakdown or metabolism of glucose by blood cells |
| Heparin | Anticoagulant that inhibits the formation of thrombin |
| Hub | End of the needle that attaches to the blood collection device |
| Hypodermic Needle | Type of needle used when collecting blood with a syringe |
| Lumen | Internal space of a vessel or tube |
| Multisample needle | Type of needle used to collect several tubes during a single venipunture, beveled needle on each end that screws into the holder. One end beveled and short end has a sleeve that retracts as the needle goes through the tube stopper |
| Order of draw | Special sequence in which tubes are filled during a mulitple-tube draw |
| Potassium oxalate | Anticoagulant commonly used with an antiglycolytic agent |
| PST | Heparinized gel tube for separation of cells and plasma |
| Shaft | Long culindrical portioin of a needle |
| Sharps conatiner | Special puncture-resistant leakproof disposable container |
| Silica | Clot activator |
| Sodium Citrate | Anticoagulant commonly used to preserve coagulation factors |
| Sodium Flouride | most common antiglycolytic agent |
| SPS | Additive used in blood culture collection |
| SST | Gel tube for seperation of cells and serum |
| Thixotropic gel | Synthetic substance used to separate cells from serum or plasma |
| Winged infusion set | Butterfly needle |
| Citrate, EDTA, Potassium oxalate | Binds calcium (anticoagulant) |
| Most common skin antiseptic for routine blood collection | 70% isopropyl alcohol |
| Results in Hemoconcentration | the tourniquet if left in place for more than 1 minute |
| The smaller the gauge | The larger the diameter of the lumen |
| Selection of evacuated tube depends on these factors | age of patient, amount of blood needed for the test and the size and condition of the patient's vein |
| Short draw | underfilled tube |
| Syringe transfer device | allows the safe transfer of blood into the tubes without using the syringe needle of removing the tube stopper |
| Use this method of collection when the patient has small or difficult veins such as hand veins, veins for the elderly or pediatric patients | winged infusion set (butterfly) |
| Lavendar tube contain | EDTA, 8-10 inversions, hematology tests |
| Green tubes contain | Heparin, 5-10 inversions, chemistry tests |
| gray tubes | Potassium oxalate & sodium flouride, 8-10 inversions, antiglycolytic tests |
| Carry over | transfer of additive from one tube to the next |
| prevent carry over and reflux by | filling tubes so the blood fills in the bottom of the tube first, blood should not touch the stopper during filling |
Created by:
rslagter
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