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key term #8
| Question | Answer |
|---|---|
| additives | substances placed in blood collection tubes to preserve the sample for specific lab tests by preventing clotting |
| antiseptic | a chemical agent applied to the skin to prevent infection by inhibiting or killing microorganisms |
| bacteriostatic | any substance that inhibits the growth and reproduction of bacteria without necessarily killing them outright |
| butterfly | a small, flexible needle with plastic "wings" for grip, used for drawing blood or giving IVs, especially in patients with small, fragile veins |
| clot activators | substances (like silica or glass particles) added to blood collection tubes to speed up the natural clotting process |
| disinfectant | a chemical agent that kills or removes microorganisms (like bacteria, viruses, fungi) from inanimate surfaces and instruments, but not necessarily spores, to prevent infection |
| gauge | refers to the needle's diameter, where the number is inversely related to its thickness |
| glycolysis | the breakdown or metabolism of glucose (blood sugar) by the blood cells |
| inpatients | individuals who have been formally admitted to a healthcare facility, such as a hospital or a skilled nursing facility, and are required to stay overnight for acute illnesses or complex medical treatment |
| Luer adapter | a leak-proof connector, often with a Luer-Lok threaded tip |
| lumen | the hollow inner space or channel within a blood vessel (like a vein or artery) or a needle, through which blood flows or is drawn |
| multisample needle | a double-ended needle, often with a retractable rubber sleeve, used with an evacuated tube system to draw several blood samples from a single venipuncture |
| needle adapter | a plastic cylinder that securely connects a double-ended needle to a vacuum collection tube |
| order of draw | the specific, standardized sequence for filling blood collection tubes to prevent additives (like anticoagulants) from contaminating subsequent tubes |
| outpatients | visits but dont stay overnight |
| polymer gel | an inert, synthetic material with a density between that of blood cells and plasma or serum |
| thixotropic gel | a special polymer gel in blood collection tubes that stays thick and gel-like at rest but becomes liquid |
| tourniquet | stretchy band (rubber or latex-free) wrapped around the upper arm to temporarily slow venous blood flow, causing veins to enlarge (distend) and become more visible/palpable for easier needle insertion |
| tube advancement mark | a line on a needle's adapter (the holder) that shows exactly how far the evacuated blood tube should be pushed onto the needle's internal stopper without breaking the tube's vacuum, ensuring proper blood draw without losing suction or causing issues |
| tube holder | a plastic device that securely connects a double-ended needle to a vacuum blood collection tube |
| whole blood | blood in its original, unseparated state, containing all its natural components—red blood cells, white blood cells, platelets, and plasmas |
| winged infusion set | a specialized device with a small, short needle, flexible "wings" for grip, and attached tubing, used for delicate blood draws or IVs, especially in patients with small or fragile veins like infants, the elderly, or those with difficult-to-access veins |
Created by:
kyliefleming