Question
Which of the following tubes contain Sodium fluoride as anticoagulant?
A.
B.
C.
D.
Show Answer
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Correct Answer » C Explanation |
 |
Ans: C. Gray
- Gray vacutainer contains Sodium fluoride (for glucose estimation).
- NaF inhibits glycolysis.
Blood Draw Tube Order Chart Phlebotomy Tube Colors
|
Order of draw |
Tube stopper color |
Additive | Dept. | Tests |
Liquid part postcentri‑ fugation |
| 1. | Yellow | Sodium polyethanol sulfonate (SPS) | Microbiology | Blood culture | Plasma |
| 2. | Light blue |
Sodium citrate |
Coagulation | PT, PTT | Plasma |
| 3. |
Red (plain) |
No additive | Tube blood bank | Type, RH,antibody screen,type and, crossmatch | Serum |
| 4. | Red and grey or gold | Clot activator | Routine chemistry | All STAT tests + Iron, folate | Serum |
| 5. | Green | Heparin | STAT chemistry | BMP, CMP, Glucose, K, Troponin, Bilirubin | Plasma |
| 6. | Lavender | K2EDTA | Hematology | CBC, ESR | Plasma |
| 7. | Pink | EDTA | Gel blood bank | Type, RH, antibody screen, type & crossmatch | Plasma |
| 8. | Gray | Sodium flouride (Inhibits glycolysis) | Chemistry | Lactic acid, gluc (Not run right away) | Plasma |