Tube Colors

What additive is in the RED GLASS tube?

• EDTA
• Sodium Citrate
• None or Silicone Coated
• Clot Activator

What additive is in the RED PLASTIC tube?

• Clot Activator or Silicone Coated
• EDTA
• None
• Heparin

What additive is in the LIGHT BLUE tube?

• None
• EDTA
• Thrombin
• Sodium Citrate

What additive is in the PEARL OR PPT tube?

• EDTA
• Gel with EDTA
• Gel
• NONE

What additive is in the GOLD OR RED/GRAY tube?

• Thixotropic Gel
• Heparin
• EDTA
• SPS

What additive is in the GRAY tube?

• Thrombin
• Potassium Oxalate
• SPS
• Sodium

What additive is in the BLACK tube?

• Gel with EDTA
• Heparin
• Sodium Citrate
• EDTA

What additive is in the GREEN tube?

• Heparin
• Thixotropic Gel
• EDTA
• Thrombin

What additive is in the LIGHT GREEN OR GREEN-GRAY tube?

• Heparin
• EDTA
• Thrombin
• Heparin/Thixotropic Gel

What additive is in the ORANGE OR YELLOW/GRAY tube?

• Heparin
• Thrombin
• EDTA
• SPS