Additives
Basic Order of Draw
Tests
General
Other Tube Colors
100
The additive for the purple top tube.
What is K2EDTA
100
This color tube is 5th in the basic order of draw.
What is Purple/lavender.
100
CBC, CBC with differential and hematology are some of the tests taken with this color tube.
What is Lavender/ purple.
100
These come in both aerobic and anaerobic types.
What is blood culture bottles.
200
The additive for the light blue tube.
What is sodium citrate
200
This tube color is 2nd in the basic order of draw.
What is Light blue.
200
Red/ red tiger/ gold topped tubes utilize this type of blood.
What is Serum.
300
Sodium fluoride and potassium oxalate are additives for this color tube.
What is Gray
300
This color tube is last in the basic order of draw.
What is gray.
300
Glucose studies and blood alcohol levels are tested with this color tube.
What is gray.
400
This color tube top has no additive.
What is red.
400
This tube color is first in the basic order of draw.
What is yellow/ blood cultures.
400
This color tube uses whole blood.
What is purple/ lavender.
500
This color tube comes with or without gel serum separator or spray coating (fibrin).
What is Red Tiger/ Gold
500
Green/ light green/ green tiger is this number in the basic order of draw.
What is 4th.
500

This is the angle you use when collecting blood.

What is 15- 30 degrees.

500
The pink tube is drawn at the same time as this tube in the basic order of draw.
What is Lavender (both have K2EDTA).
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