collection methods
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| name the 3 methods for collecting blood | evacuated tube, syringe and butterfly
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| single draw and multidraw | two kinds of evacuated tube methods.
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| what method would you use if you required more than one test to be run from a patient | evacuated tube multidraw
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| the most common method used in venipuncture | evacuated tube
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| lavender tube | contains sodium or EDTA, prevents clotting. most common tests: CBC, hematology
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| light blue | coagulation studies, contains sodium citrate. prevents coagulation. **must fill completely ratio 9:1
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| black | contains sodium citrate, ratio is 4:1. common test Westergren sedimentation rate
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| gray | contains anticoagulant and cell preservative. common for glucose testing, alcohol levels
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| green | contain -sodium heparin or ammonium heparin, lithium heparin. tests that require blood plasma
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| dark blue | chemically cleaned. anticoagulant free or contain the anticoagulant sodium heparin or disodium EDTA. toxicology studies, trace metal assays, nutritional analysis
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| brown | contain heparin and are chemically free and certified to contain less than 0.1ug/mL lead.
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| yellow | sterile, contains sodium polyanetholesufonate (SPS). used for microbiology studies. bacteria
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| red | plain tube. no anticoagulant or additives. used for serology tests, serum chem, blood bank
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| serum separator tubes have what in them | a gel-like substance that forms a barrier between the cells and serum on centrifugation
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| serum separator tube colors | red, gray or gold
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| this method is used to establish intravenous lines or to draw blood from small veins | butterfly method
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| this method is used in geriatric patients, or patients with small or weak veins taht might collapse under the pressure | syringe method
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| equipment that may be found in a collection cart/tray | disposable gloves, needles, sharps container, tourniquet, antiseptic, guaze, needleholder, evacuation tubes
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| the higher the gauge number of a needle..... | the smaller the diameter
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| what diameter needle should be used on children | 21-23
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| what diameter needle should be used for adults | 20-22 & 1-1.5" long
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| what diameter need should be used for a unit of blood for transfusion | 17
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| where should the tourniquet be placed | 3-4" above antecubital fossa
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| why do we swab the area with an antiseptic before venipuncture | reduce the risk of skin bacteria causing infection at the site of puncture and help prevent contamination of the sample
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| what do you use sterile gauze for | pressure after venipuncture and/or under a bandage
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| do needle holders need to be changed between patients | no, unless they have been contaminated
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| what are the sizes of an evacuation tube | 2-15ml
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| name the 5 most common evac tubes used | lavender (EDTA), light blue (sodium citrate), gold (SST), green (Lithium Heparin), red (no additive)
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Created by:
spicey
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