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Order of Draws
Colored Top Tube
| Question | Answer |
|---|---|
| Yellow Top tube- Blood cultures | Aerobic and Anaerobic cultures Iodine is the antiseptic used to collect blood cultures (Microbiology department) Needs special training & Inpatient hospital test only |
| Light blue- Anticoagulation | Fill the tube completely Additive: Sodium Citrate Use as discard tube if having to use the butterfly needle ( Winged Collection Set) For coagulation studies Test only for: PT, PTT, PT/INR |
| Red Top | Additive: None Discard tube Measures the concentration of medicine in body (Theraputic Lab Testing) Chemistry Department Test: electrolytes, free testosterone, creatine- must be frozen |
| Dark Green/Marbled Top | Additive: Thixotropic Gel Serum Separator Tube Chemistry Department Must be spun in centrifuge once clotted Test: TSH, BMP, CMP, PSA, Liquid Panel, Amylase, Estradiol, Progesterone, LH, FSH |
| Light Green ( Mint Green) Top | Additive: Lithium Heparin Chemistry department Test: Troponin, Enzyme Test, Electrolytes Must be spun in centrifuge once clotted Thixotropic gel- Serum Separator |
| Green | Additive: Lithium Heparin STAT Chemistry Test: ABG( Arterial Blood Gas)- must be sent to lab immediately on ice, Chem 7 |
| Lavender Top | Additive: EDTA – ethylenediamine-tetra-acetic Department: hematology Test: CBC, CBC w/ Diff, HgA1c, ESR, ABO/Rh, Hgb, Hct Test: Ammonia – must be put on ice immediately and sent to lab |
| Pink top | Additive: EDTA Blood Banking Department: Hematology/Chemistry Test: ABO/Rh |
| Gray Top | Additive: Sodium Fluoride – antiglycolytic Additive : Potassium Oxalate – anticoagulant Diabetes Management, ethanol, lactic acid testing Department: Chemistry Test: Glucose Lactic Acid – avoid the use of tourniquet, must be in ice bath |
| Tan Top | Additive: K2-EDTA / Lead Free Department: Chemistry Test: Lead |
| Royal Blue Top | Additive: EDTA Department: Chemistry Test: Toxicology, trace elements |
| Orange Top | Additive: Thrombin clot activator Tests: STAT Serum test |
| White Top | Additive: K2-EDTA Plasma separator Test: Molecular, DNA |