Highlight the letter of the that corresponds to the displayed .
1. Sixth Tube
A: Gray Topped Tubes / oxalate\floride tubes, glucose
B: Protects bacteria from effect of antibacterial properties of blood
C: Acid Citrate Dextrose (ACD)
D: Heparin
2. Tiger Topped: Mottled Topped, Speckled and Gold Topped Tubes (Use)
A: Erythrocyte Sedimentation Rate (ESR)
B: Lab assays requiring plasma or whole blood - mostly blood chemistry tests: Glucose, BUN, Creatinine,
C: Forms a stable barrier separating the serum from fibrin and blood cells
D: Lithium Heparin Sodium Heparin
3. Royal Blue Topped Tubes (Additive)
A: Lead Testing
B: Heparin
C: Sodium Citrate
D: Nutritional studies therapeutic drug monitoring and toxicology studies trace metal assays
4. Red Topped Tubes (Use)
A: Thrombin
B: Lead Testing
C: Used for serology and chemistry tests and in blood bank for blood typing when both cells and serum are
D: Erythrocyte Sedimentation Rate (ESR)
5. Yellow-Topped Tubes (Additive) for Blood Culture
A: General Hematologic studies CBC, WBC & differential count, platelets count & function tests hemoglobin
determinations; Erythrocyte Sedimentation rate (ESR); Sickle Cell Screening Other Test= Molecular
B: Used Whole blood hematology and immunohematology testing
C: Additive Sodium Polantholesulfonte (SPS)
D: Polymer Barrier: Clot Activator and gel for serum separation (NOT AN ANTICOAGULANT)
6. Yellow Topped Tubes (Additive) for Blood Banking
A: Preserves blood for donation
B: Heparin
C: Prevents clotting by binding with calcium
D: Acid Citrate Dextrose (ACD)
7. Purple (Lavender) Topped Tubes (Use)
A: Green Topped Tubes / Heparin Tubes
2024/2025 Edition