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CCMA M8: Phlebotomy
CCMA Module 8: Order of draw basic terms & Needle systems
| Order of draw | Yellow Light blue Red Red/gray marbled Green Green/gray marbled Lavendar Gray |
| Tube additives: Yellow | Sodium polyanethol sulfonate |
| Tube additives: Light blue | Sodium citrate |
| Tube additives: Red | None |
| Tube additives: Red/gray marbled | Silica particles |
| Tube additives: Green | Heparin |
| Tube additives: Green/gray marbled | Lithium heparin and gel |
| Tube additives: Lavendar | EDTA (ethylenediaminetetraacetic acid) |
| Tube additives: Gray | Potassium oxalate and sodium fluoride |
| Number of inversions: Yellow | 0 |
| Number of inversions: Light blue | 3-4 |
| Number of inversions: Red | 5 |
| Number of inversions: Red/gray marbled | 5 |
| Number of inversions: Green | 8 |
| Number of inversions: Green/gray | 8 |
| Number of inversions: Lavendar | 8 |
| Number of inversions: Gray | 8-10 |
| Evacuated system | Consists of a double-pointed needle, a plastic needle holder/adapter, and collection tubes. Creates a slight vacuum to transport blood from vein to tube. Used to obtain multiple tubes of blood with one venipuncture stick |
| Evacuated system: Vacutainer needle sizes & lengths | Gauge: 20 to 22 Length: 3/4 to 1 1/2 in |
| Winged infusion set/Butterfly system | Consists of flexible wings attached to a needle with 5 to 12 inches of flexible tubing that connects the needle to the collection device. Best for patients with small or fragile patients (typically the elderly). Tends to cause less trauma/bruising. |
| Winged infusion set/Butterfly system: Butterfly needle sizes & lengths | Gauge: 21 to 23 Length: 1/2 to 3/4 in |
| Needle syringe system | Consists of a needle and syringe; used to draw blood from a vein manually. Only a small amount of blood may be obtained with this method. Suction is controlled by syringe plunger. |
| Needle syringe system: needle size | Gauge: 16 |
| Laboratory use: Yellow | Blood or body fluid cultures |
| Laboratory use: Light blue | Coagulation testing |
| Laboratory use: Red | Serum test; chemistry studies; blood bank; immunology |
| Laboratory use: Red/gray marbled | Serum test; chemistry studies; immunology |
| Laboratory use: Green | Chemistry test |
| Laboratory use: Green/gray marbled | Plasma determinations in chemistry studies |
| Laboratory use: Lavendar | Hematology test |
| Laboratory use: Gray | Chemistry testing, especially glucose and alcohol levels |
| Chemistry testing | Analyzing a blood sample to measure the levels of various chemicals in the blood. |
| Order of draw for microcapillary tubes | Blood gases EDTA tubes Other additive tubes Serum tubes |
Created by:
Tea Lad
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