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order of blood draw
Question | Answer | |||
---|---|---|---|---|
yellow (Plastic) | SPS | anticoagulant | blood cultures ( requires a waste tube ) | 8 to 10 |
Light Blue | sodium citrate | reversible anticoagulant | PT, PTT, PT/INR ( 9:1 ratio must be completely full) | 3 to 4 |
Red , Orange , Gold | clot activator | coagulant | chemistries- BMP, CMP, hCG | red 5 orange 5 to 6 gold 5 |
red tiger top | red-No Additive | coagulant | HIV/Hep, Cholesterols, TSH | 5 times |
Green , Mint Green, green tiger top | sodium heparin or lithium heparin | anticoagulant | STAT Chemistries , lactate (on ice ) | 8 to 10 |
lavender, pink | EDTA K2 or EDTA E3 | anticoagulant | pink: type & screen Lavender : CBC, HBA1C , Ammonia (on ice) (CBC most commonly ordered test) | 8 to 10 |
White/Pearl | EDTA K2 | anticoagulant | long term storage protein based plasma testing | 8 to 10 |
Grey | sodium fluoride or potassium oxalate | anticoagulant | GTT ( glucose tolerance test } timed test | 8 to 10 |
yellow (glass) | ACD | anticoagulant | DNA/paternity | 8 to 10 |
black | varies | anticoagulant | erythrocyte sedimentation rate ( westergren sedimentation rate ) | 8 to 10 |
why is it important to invert the tubes | to insure that the mixture of blood and additives are efficiently mixed | |||
why is the order of draw important | to avoid cross- contamination | |||
what is the order of draw | blood culture (yellow sps) light blue red orange light/dark green lavender / pink grey yellow(ACD) black |