Phlebotomy study Word Scramble
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| Question | Answer |
| All tubes contain at least one additive..Not Red Glass Tube. | Additives Include: Anticoagulants, Clot Activators, thixotropic gel to separate components, Preservatives and Inhibitors of various cellular reactions to maintain the integrity of the specimen. |
| Additives | Must be inverted and mixed immediately after removal. |
| Anticoagulants | Prevent clotting (coagulation) sodium or potassium ethylenediaminetetraacetic acid (EDTA) binds calcium, which will inhibit coagulation of th eblood. |
| Binding Calcium, other additives. | Sodium Citrate, Potassium Oxalate, Sodium Ployanethol sulfonate (SPS) |
| Heparin inhibits clotting | By preventin the conversion of prothrombin to thrombin. |
| The phlebotomist must make sure to fill the tube correctly | So that there is the correct ratio of blood to anticoagulant |
| Choice of Anticoagulant | Determines by the test done. |
| EDTA | Preserves blood cell integrity, prevents platelet clumping, but interferes with coagulation studies. |
| Socium citrate: | Used for coagulation studies. |
| SPS | Used for blood cultures because it inhibits certain immune system components that could destroy blood-borne bacteria |
| Will also neutralize any antibiotic the patient may be taking | SPS |
| Heparin | Preffered for plasma chemistry and blood gas determinations |
| Pottasium Oxalate | Used for glucose determination may be combined with sodium fluoride. Inhibits glycolysis. |
| Clot activators promote coagulation (clotting) | Thrombin increases clotting and is used for STAT serum chemistry or if the patient is on anticoagulants |
| Glass or silica promotes clotting by | Providing more surface area for platelet activation. |
| Clot activators | maybe adhered to the side of the tube. |
| Invert the tube | AT LEAST 5 TIMES...To make sure it becomes in contact with activator. |
| Thixotropic gel: | Synthetic Substance with a density in between that of cells and blood serum or plasma. |
| As a result, when patient's blood is drawn and centrifuged: | Thixotropic gel turns to liquid and moves between the lower cell layer and the upper serum or plasma layer. Gel hardens, and forms a barrier allowing easy separation. |
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drehmon2237
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