Question

EDTA (ethylenediaminetetraacetic acid) is present in which color-topped vacuum tube?

Select one:
a. light blue
b. gray
c. pink
d. lavender
e. yellow

Answer 1

EDTA is found in lavender-topped vacuum tubes, where it serves as an anticoagulant to prevent blood clotting for certain laboratory tests. The correct vacuum tube color for EDTA (ethylenediaminetetraacetic acid) is lavender (d).

Step-by-step explanation:

EDTA (ethylenediaminetetraacetic acid) is present in lavender-topped vacuum tubes. These tubes typically contain EDTA as an anticoagulant, which binds the calcium ions in the blood and prevents clotting, making the blood samples suitable for full blood counts and other hematology studies.